Home / 115,545.13-159,436.40-64,551.53

Finding the Fourth Proportional to 115,545.13, 159,436.40 and 64,551.53

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Solution

The fourth proportional to 115,545.13, 159,436.40 and 64,551.53 is: 89,072.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,545.13 : 159,436.40 = 64,551.53 : x
  2. Step 2: Convert to fraction form
    115,545.13/159,436.40 = 64,551.53/x
  3. Step 3: Cross multiply
    115,545.13x = 159,436.40 × 64,551.53
  4. Step 4: Simplify right side
    115,545.13x = 10,291,863,996.63
  5. Step 5: Solve for x
    x = 10,291,863,996.63/115,545.13
  6. Step 6: Final answer
    x = 89,072.24

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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.