Home / 131,675.52-181,711.45-74,333.40

Finding the Fourth Proportional to 131,675.52, 181,711.45 and 74,333.40

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Solution

The fourth proportional to 131,675.52, 181,711.45 and 74,333.40 is: 102,579.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,675.52 : 181,711.45 = 74,333.40 : x
  2. Step 2: Convert to fraction form
    131,675.52/181,711.45 = 74,333.40/x
  3. Step 3: Cross multiply
    131,675.52x = 181,711.45 × 74,333.40
  4. Step 4: Simplify right side
    131,675.52x = 13,507,229,308.93
  5. Step 5: Solve for x
    x = 13,507,229,308.93/131,675.52
  6. Step 6: Final answer
    x = 102,579.65

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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.