Home / 109,920.32-151,673.94-61,521.92

Finding the Fourth Proportional to 109,920.32, 151,673.94 and 61,521.92

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Solution

The fourth proportional to 109,920.32, 151,673.94 and 61,521.92 is: 84,891.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,920.32 : 151,673.94 = 61,521.92 : x
  2. Step 2: Convert to fraction form
    109,920.32/151,673.94 = 61,521.92/x
  3. Step 3: Cross multiply
    109,920.32x = 151,673.94 × 61,521.92
  4. Step 4: Simplify right side
    109,920.32x = 9,331,272,002.76
  5. Step 5: Solve for x
    x = 9,331,272,002.76/109,920.32
  6. Step 6: Final answer
    x = 84,891.24

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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.