Home / 115,897.11-159,948.24-64,909.05

Finding the Fourth Proportional to 115,897.11, 159,948.24 and 64,909.05

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Solution

The fourth proportional to 115,897.11, 159,948.24 and 64,909.05 is: 89,580.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,897.11 : 159,948.24 = 64,909.05 : x
  2. Step 2: Convert to fraction form
    115,897.11/159,948.24 = 64,909.05/x
  3. Step 3: Cross multiply
    115,897.11x = 159,948.24 × 64,909.05
  4. Step 4: Simplify right side
    115,897.11x = 10,382,088,307.57
  5. Step 5: Solve for x
    x = 10,382,088,307.57/115,897.11
  6. Step 6: Final answer
    x = 89,580.22

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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.