Home / 261,056.13-391,392.67-83,460.93

Finding the Fourth Proportional to 261,056.13, 391,392.67 and 83,460.93

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Solution

The fourth proportional to 261,056.13, 391,392.67 and 83,460.93 is: 125,130.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,056.13 : 391,392.67 = 83,460.93 : x
  2. Step 2: Convert to fraction form
    261,056.13/391,392.67 = 83,460.93/x
  3. Step 3: Cross multiply
    261,056.13x = 391,392.67 × 83,460.93
  4. Step 4: Simplify right side
    261,056.13x = 32,665,996,233.38
  5. Step 5: Solve for x
    x = 32,665,996,233.38/261,056.13
  6. Step 6: Final answer
    x = 125,130.16

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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.