Home / 112,565,501.20-155,128,089.36-90,213,097.60

Finding the Fourth Proportional to 112,565,501.20, 155,128,089.36 and 90,213,097.60

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Solution

The fourth proportional to 112,565,501.20, 155,128,089.36 and 90,213,097.60 is: 124,323,929.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,565,501.20 : 155,128,089.36 = 90,213,097.60 : x
  2. Step 2: Convert to fraction form
    112,565,501.20/155,128,089.36 = 90,213,097.60/x
  3. Step 3: Cross multiply
    112,565,501.20x = 155,128,089.36 × 90,213,097.60
  4. Step 4: Simplify right side
    112,565,501.20x = 13,994,585,465,935,202
  5. Step 5: Solve for x
    x = 13,994,585,465,935,202/112,565,501.20
  6. Step 6: Final answer
    x = 124,323,929.77

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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.