Home / 131,330.76-181,240.98-74,740.92

Finding the Fourth Proportional to 131,330.76, 181,240.98 and 74,740.92

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Solution

The fourth proportional to 131,330.76, 181,240.98 and 74,740.92 is: 103,145.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,330.76 : 181,240.98 = 74,740.92 : x
  2. Step 2: Convert to fraction form
    131,330.76/181,240.98 = 74,740.92/x
  3. Step 3: Cross multiply
    131,330.76x = 181,240.98 × 74,740.92
  4. Step 4: Simplify right side
    131,330.76x = 13,546,117,586.90
  5. Step 5: Solve for x
    x = 13,546,117,586.90/131,330.76
  6. Step 6: Final answer
    x = 103,145.05

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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.