Home / 118,344.97-163,494.21-77,606.02

Finding the Fourth Proportional to 118,344.97, 163,494.21 and 77,606.02

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Solution

The fourth proportional to 118,344.97, 163,494.21 and 77,606.02 is: 107,213.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,344.97 : 163,494.21 = 77,606.02 : x
  2. Step 2: Convert to fraction form
    118,344.97/163,494.21 = 77,606.02/x
  3. Step 3: Cross multiply
    118,344.97x = 163,494.21 × 77,606.02
  4. Step 4: Simplify right side
    118,344.97x = 12,688,134,931.14
  5. Step 5: Solve for x
    x = 12,688,134,931.14/118,344.97
  6. Step 6: Final answer
    x = 107,213.13

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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.