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Finding the Fourth Proportional to 161,157.78, 241,714.35 and 42,838.74

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Solution

The fourth proportional to 161,157.78, 241,714.35 and 42,838.74 is: 64,252.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,157.78 : 241,714.35 = 42,838.74 : x
  2. Step 2: Convert to fraction form
    161,157.78/241,714.35 = 42,838.74/x
  3. Step 3: Cross multiply
    161,157.78x = 241,714.35 × 42,838.74
  4. Step 4: Simplify right side
    161,157.78x = 10,354,738,193.92
  5. Step 5: Solve for x
    x = 10,354,738,193.92/161,157.78
  6. Step 6: Final answer
    x = 64,252.18

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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.