Home / 261,076.50-391,652.11-99,030.13

Finding the Fourth Proportional to 261,076.50, 391,652.11 and 99,030.13

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Solution

The fourth proportional to 261,076.50, 391,652.11 and 99,030.13 is: 148,559.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,076.50 : 391,652.11 = 99,030.13 : x
  2. Step 2: Convert to fraction form
    261,076.50/391,652.11 = 99,030.13/x
  3. Step 3: Cross multiply
    261,076.50x = 391,652.11 × 99,030.13
  4. Step 4: Simplify right side
    261,076.50x = 38,785,358,512.73
  5. Step 5: Solve for x
    x = 38,785,358,512.73/261,076.50
  6. Step 6: Final answer
    x = 148,559.36

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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.