Home / 141,389.76-212,028.80-57,134

Finding the Fourth Proportional to 141,389.76, 212,028.80 and 57,134

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Solution

The fourth proportional to 141,389.76, 212,028.80 and 57,134 is: 85,678.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,389.76 : 212,028.80 = 57,134 : x
  2. Step 2: Convert to fraction form
    141,389.76/212,028.80 = 57,134/x
  3. Step 3: Cross multiply
    141,389.76x = 212,028.80 × 57,134
  4. Step 4: Simplify right side
    141,389.76x = 12,114,053,459.20
  5. Step 5: Solve for x
    x = 12,114,053,459.20/141,389.76
  6. Step 6: Final answer
    x = 85,678.44

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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.