Home / 121,306.03-181,562.18-89,276.51

Finding the Fourth Proportional to 121,306.03, 181,562.18 and 89,276.51

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Solution

The fourth proportional to 121,306.03, 181,562.18 and 89,276.51 is: 133,622.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,306.03 : 181,562.18 = 89,276.51 : x
  2. Step 2: Convert to fraction form
    121,306.03/181,562.18 = 89,276.51/x
  3. Step 3: Cross multiply
    121,306.03x = 181,562.18 × 89,276.51
  4. Step 4: Simplify right side
    121,306.03x = 16,209,237,785.91
  5. Step 5: Solve for x
    x = 16,209,237,785.91/121,306.03
  6. Step 6: Final answer
    x = 133,622.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.