Home / 131,700.09-181,746.13-71,270.73

Finding the Fourth Proportional to 131,700.09, 181,746.13 and 71,270.73

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Solution

The fourth proportional to 131,700.09, 181,746.13 and 71,270.73 is: 98,353.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,700.09 : 181,746.13 = 71,270.73 : x
  2. Step 2: Convert to fraction form
    131,700.09/181,746.13 = 71,270.73/x
  3. Step 3: Cross multiply
    131,700.09x = 181,746.13 × 71,270.73
  4. Step 4: Simplify right side
    131,700.09x = 12,953,179,359.77
  5. Step 5: Solve for x
    x = 12,953,179,359.77/131,700.09
  6. Step 6: Final answer
    x = 98,353.61

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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.