Home / 118,431.71-163,428.87-64,717.17

Finding the Fourth Proportional to 118,431.71, 163,428.87 and 64,717.17

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Solution

The fourth proportional to 118,431.71, 163,428.87 and 64,717.17 is: 89,305.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,431.71 : 163,428.87 = 64,717.17 : x
  2. Step 2: Convert to fraction form
    118,431.71/163,428.87 = 64,717.17/x
  3. Step 3: Cross multiply
    118,431.71x = 163,428.87 × 64,717.17
  4. Step 4: Simplify right side
    118,431.71x = 10,576,653,962.70
  5. Step 5: Solve for x
    x = 10,576,653,962.70/118,431.71
  6. Step 6: Final answer
    x = 89,305.93

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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.