Home / 145,659.50-218,446.20-74,538.26

Finding the Fourth Proportional to 145,659.50, 218,446.20 and 74,538.26

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Solution

The fourth proportional to 145,659.50, 218,446.20 and 74,538.26 is: 111,785.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,659.50 : 218,446.20 = 74,538.26 : x
  2. Step 2: Convert to fraction form
    145,659.50/218,446.20 = 74,538.26/x
  3. Step 3: Cross multiply
    145,659.50x = 218,446.20 × 74,538.26
  4. Step 4: Simplify right side
    145,659.50x = 16,282,599,651.61
  5. Step 5: Solve for x
    x = 16,282,599,651.61/145,659.50
  6. Step 6: Final answer
    x = 111,785.36

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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.