Home / 115,892.13-159,934.67-64,904.73

Finding the Fourth Proportional to 115,892.13, 159,934.67 and 64,904.73

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Solution

The fourth proportional to 115,892.13, 159,934.67 and 64,904.73 is: 89,570.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,892.13 : 159,934.67 = 64,904.73 : x
  2. Step 2: Convert to fraction form
    115,892.13/159,934.67 = 64,904.73/x
  3. Step 3: Cross multiply
    115,892.13x = 159,934.67 × 64,904.73
  4. Step 4: Simplify right side
    115,892.13x = 10,380,516,573.99
  5. Step 5: Solve for x
    x = 10,380,516,573.99/115,892.13
  6. Step 6: Final answer
    x = 89,570.50

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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.