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Finding the Fourth Proportional to 145,767.52, 218,511.84 and 56,991.52

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Solution

The fourth proportional to 145,767.52, 218,511.84 and 56,991.52 is: 85,432.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,767.52 : 218,511.84 = 56,991.52 : x
  2. Step 2: Convert to fraction form
    145,767.52/218,511.84 = 56,991.52/x
  3. Step 3: Cross multiply
    145,767.52x = 218,511.84 × 56,991.52
  4. Step 4: Simplify right side
    145,767.52x = 12,453,321,899.60
  5. Step 5: Solve for x
    x = 12,453,321,899.60/145,767.52
  6. Step 6: Final answer
    x = 85,432.76

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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.