Home / 90,037,138.96-134,914,081.56-69,616,740.88

Finding the Fourth Proportional to 90,037,138.96, 134,914,081.56 and 69,616,740.88

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Solution

The fourth proportional to 90,037,138.96, 134,914,081.56 and 69,616,740.88 is: 104,315,605.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,037,138.96 : 134,914,081.56 = 69,616,740.88 : x
  2. Step 2: Convert to fraction form
    90,037,138.96/134,914,081.56 = 69,616,740.88/x
  3. Step 3: Cross multiply
    90,037,138.96x = 134,914,081.56 × 69,616,740.88
  4. Step 4: Simplify right side
    90,037,138.96x = 9,392,278,657,025,706
  5. Step 5: Solve for x
    x = 9,392,278,657,025,706/90,037,138.96
  6. Step 6: Final answer
    x = 104,315,605.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.