Home / 98,737.38-136,258.61-56,298.65

Finding the Fourth Proportional to 98,737.38, 136,258.61 and 56,298.65

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Solution

The fourth proportional to 98,737.38, 136,258.61 and 56,298.65 is: 77,692.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,737.38 : 136,258.61 = 56,298.65 : x
  2. Step 2: Convert to fraction form
    98,737.38/136,258.61 = 56,298.65/x
  3. Step 3: Cross multiply
    98,737.38x = 136,258.61 × 56,298.65
  4. Step 4: Simplify right side
    98,737.38x = 7,671,174,831.09
  5. Step 5: Solve for x
    x = 7,671,174,831.09/98,737.38
  6. Step 6: Final answer
    x = 77,692.71

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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.