Home / 115,918.10-173,877.15-89,641.70

Finding the Fourth Proportional to 115,918.10, 173,877.15 and 89,641.70

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Solution

The fourth proportional to 115,918.10, 173,877.15 and 89,641.70 is: 134,462.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,918.10 : 173,877.15 = 89,641.70 : x
  2. Step 2: Convert to fraction form
    115,918.10/173,877.15 = 89,641.70/x
  3. Step 3: Cross multiply
    115,918.10x = 173,877.15 × 89,641.70
  4. Step 4: Simplify right side
    115,918.10x = 15,586,643,317.16
  5. Step 5: Solve for x
    x = 15,586,643,317.16/115,918.10
  6. Step 6: Final answer
    x = 134,462.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.