Home / 109,909.05-151,677.21-61,510.61

Finding the Fourth Proportional to 109,909.05, 151,677.21 and 61,510.61

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Solution

The fourth proportional to 109,909.05, 151,677.21 and 61,510.61 is: 84,886.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,909.05 : 151,677.21 = 61,510.61 : x
  2. Step 2: Convert to fraction form
    109,909.05/151,677.21 = 61,510.61/x
  3. Step 3: Cross multiply
    109,909.05x = 151,677.21 × 61,510.61
  4. Step 4: Simplify right side
    109,909.05x = 9,329,756,951.81
  5. Step 5: Solve for x
    x = 9,329,756,951.81/109,909.05
  6. Step 6: Final answer
    x = 84,886.16

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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.