Home / 109,612.40-151,290.38-64,304.93

Finding the Fourth Proportional to 109,612.40, 151,290.38 and 64,304.93

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Solution

The fourth proportional to 109,612.40, 151,290.38 and 64,304.93 is: 88,755.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,612.40 : 151,290.38 = 64,304.93 : x
  2. Step 2: Convert to fraction form
    109,612.40/151,290.38 = 64,304.93/x
  3. Step 3: Cross multiply
    109,612.40x = 151,290.38 × 64,304.93
  4. Step 4: Simplify right side
    109,612.40x = 9,728,717,834.56
  5. Step 5: Solve for x
    x = 9,728,717,834.56/109,612.40
  6. Step 6: Final answer
    x = 88,755.64

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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.