Home / 133,089.20-183,693.96-87,775.28

Finding the Fourth Proportional to 133,089.20, 183,693.96 and 87,775.28

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Solution

The fourth proportional to 133,089.20, 183,693.96 and 87,775.28 is: 121,150.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,089.20 : 183,693.96 = 87,775.28 : x
  2. Step 2: Convert to fraction form
    133,089.20/183,693.96 = 87,775.28/x
  3. Step 3: Cross multiply
    133,089.20x = 183,693.96 × 87,775.28
  4. Step 4: Simplify right side
    133,089.20x = 16,123,788,773.31
  5. Step 5: Solve for x
    x = 16,123,788,773.31/133,089.20
  6. Step 6: Final answer
    x = 121,150.24

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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.