Home / 181,810.40-272,715.60-57,135.20

Finding the Fourth Proportional to 181,810.40, 272,715.60 and 57,135.20

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Solution

The fourth proportional to 181,810.40, 272,715.60 and 57,135.20 is: 85,702.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,810.40 : 272,715.60 = 57,135.20 : x
  2. Step 2: Convert to fraction form
    181,810.40/272,715.60 = 57,135.20/x
  3. Step 3: Cross multiply
    181,810.40x = 272,715.60 × 57,135.20
  4. Step 4: Simplify right side
    181,810.40x = 15,581,660,349.12
  5. Step 5: Solve for x
    x = 15,581,660,349.12/181,810.40
  6. Step 6: Final answer
    x = 85,702.80

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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.