Home / 145,012.20-217,454.01-77,527.86

Finding the Fourth Proportional to 145,012.20, 217,454.01 and 77,527.86

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Solution

The fourth proportional to 145,012.20, 217,454.01 and 77,527.86 is: 116,257.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,012.20 : 217,454.01 = 77,527.86 : x
  2. Step 2: Convert to fraction form
    145,012.20/217,454.01 = 77,527.86/x
  3. Step 3: Cross multiply
    145,012.20x = 217,454.01 × 77,527.86
  4. Step 4: Simplify right side
    145,012.20x = 16,858,744,043.72
  5. Step 5: Solve for x
    x = 16,858,744,043.72/145,012.20
  6. Step 6: Final answer
    x = 116,257.42

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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.