Home / 109,488.15-151,098.81-61,740.47

Finding the Fourth Proportional to 109,488.15, 151,098.81 and 61,740.47

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Solution

The fourth proportional to 109,488.15, 151,098.81 and 61,740.47 is: 85,204.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,488.15 : 151,098.81 = 61,740.47 : x
  2. Step 2: Convert to fraction form
    109,488.15/151,098.81 = 61,740.47/x
  3. Step 3: Cross multiply
    109,488.15x = 151,098.81 × 61,740.47
  4. Step 4: Simplify right side
    109,488.15x = 9,328,911,545.84
  5. Step 5: Solve for x
    x = 9,328,911,545.84/109,488.15
  6. Step 6: Final answer
    x = 85,204.76

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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.