Home / 131,713.48-181,764.90-75,123.40

Finding the Fourth Proportional to 131,713.48, 181,764.90 and 75,123.40

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Solution

The fourth proportional to 131,713.48, 181,764.90 and 75,123.40 is: 103,670.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,713.48 : 181,764.90 = 75,123.40 : x
  2. Step 2: Convert to fraction form
    131,713.48/181,764.90 = 75,123.40/x
  3. Step 3: Cross multiply
    131,713.48x = 181,764.90 × 75,123.40
  4. Step 4: Simplify right side
    131,713.48x = 13,654,797,288.66
  5. Step 5: Solve for x
    x = 13,654,797,288.66/131,713.48
  6. Step 6: Final answer
    x = 103,670.46

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1.5x scale

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.