Home / 112,565,506.20-155,128,096.26-90,213,102.60

Finding the Fourth Proportional to 112,565,506.20, 155,128,096.26 and 90,213,102.60

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Solution

The fourth proportional to 112,565,506.20, 155,128,096.26 and 90,213,102.60 is: 124,323,936.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,565,506.20 : 155,128,096.26 = 90,213,102.60 : x
  2. Step 2: Convert to fraction form
    112,565,506.20/155,128,096.26 = 90,213,102.60/x
  3. Step 3: Cross multiply
    112,565,506.20x = 155,128,096.26 × 90,213,102.60
  4. Step 4: Simplify right side
    112,565,506.20x = 13,994,586,864,046,054
  5. Step 5: Solve for x
    x = 13,994,586,864,046,054/112,565,506.20
  6. Step 6: Final answer
    x = 124,323,936.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.