Home / 118,428.38-163,429.21-64,712.24

Finding the Fourth Proportional to 118,428.38, 163,429.21 and 64,712.24

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Solution

The fourth proportional to 118,428.38, 163,429.21 and 64,712.24 is: 89,301.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,428.38 : 163,429.21 = 64,712.24 : x
  2. Step 2: Convert to fraction form
    118,428.38/163,429.21 = 64,712.24/x
  3. Step 3: Cross multiply
    118,428.38x = 163,429.21 × 64,712.24
  4. Step 4: Simplify right side
    118,428.38x = 10,575,870,260.53
  5. Step 5: Solve for x
    x = 10,575,870,260.53/118,428.38
  6. Step 6: Final answer
    x = 89,301.82

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1.5x scale

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.