Home / 112,644.90-155,449.98-70,203.60

Finding the Fourth Proportional to 112,644.90, 155,449.98 and 70,203.60

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Solution

The fourth proportional to 112,644.90, 155,449.98 and 70,203.60 is: 96,880.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,644.90 : 155,449.98 = 70,203.60 : x
  2. Step 2: Convert to fraction form
    112,644.90/155,449.98 = 70,203.60/x
  3. Step 3: Cross multiply
    112,644.90x = 155,449.98 × 70,203.60
  4. Step 4: Simplify right side
    112,644.90x = 10,913,148,215.93
  5. Step 5: Solve for x
    x = 10,913,148,215.93/112,644.90
  6. Step 6: Final answer
    x = 96,880.98

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1.5x scale

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.