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Finding the Fourth Proportional to 118,000.98, 162,840.68 and 64,285.86

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Solution

The fourth proportional to 118,000.98, 162,840.68 and 64,285.86 is: 88,714.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,000.98 : 162,840.68 = 64,285.86 : x
  2. Step 2: Convert to fraction form
    118,000.98/162,840.68 = 64,285.86/x
  3. Step 3: Cross multiply
    118,000.98x = 162,840.68 × 64,285.86
  4. Step 4: Simplify right side
    118,000.98x = 10,468,353,156.78
  5. Step 5: Solve for x
    x = 10,468,353,156.78/118,000.98
  6. Step 6: Final answer
    x = 88,714.12

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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.