Home / 145,060.76-217,416.18-74,901.80

Finding the Fourth Proportional to 145,060.76, 217,416.18 and 74,901.80

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Solution

The fourth proportional to 145,060.76, 217,416.18 and 74,901.80 is: 112,262.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,060.76 : 217,416.18 = 74,901.80 : x
  2. Step 2: Convert to fraction form
    145,060.76/217,416.18 = 74,901.80/x
  3. Step 3: Cross multiply
    145,060.76x = 217,416.18 × 74,901.80
  4. Step 4: Simplify right side
    145,060.76x = 16,284,863,231.12
  5. Step 5: Solve for x
    x = 16,284,863,231.12/145,060.76
  6. Step 6: Final answer
    x = 112,262.36

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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.