Home / 118,306.05-163,264.66-64,591.21

Finding the Fourth Proportional to 118,306.05, 163,264.66 and 64,591.21

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Solution

The fourth proportional to 118,306.05, 163,264.66 and 64,591.21 is: 89,137.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,306.05 : 163,264.66 = 64,591.21 : x
  2. Step 2: Convert to fraction form
    118,306.05/163,264.66 = 64,591.21/x
  3. Step 3: Cross multiply
    118,306.05x = 163,264.66 × 64,591.21
  4. Step 4: Simplify right side
    118,306.05x = 10,545,461,939.64
  5. Step 5: Solve for x
    x = 10,545,461,939.64/118,306.05
  6. Step 6: Final answer
    x = 89,137.13

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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.