Home / 115,711.79-173,666.30-45,640.31

Finding the Fourth Proportional to 115,711.79, 173,666.30 and 45,640.31

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Solution

The fourth proportional to 115,711.79, 173,666.30 and 45,640.31 is: 68,499.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,711.79 : 173,666.30 = 45,640.31 : x
  2. Step 2: Convert to fraction form
    115,711.79/173,666.30 = 45,640.31/x
  3. Step 3: Cross multiply
    115,711.79x = 173,666.30 × 45,640.31
  4. Step 4: Simplify right side
    115,711.79x = 7,926,182,672.02
  5. Step 5: Solve for x
    x = 7,926,182,672.02/115,711.79
  6. Step 6: Final answer
    x = 68,499.36

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1.5x scale

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.