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Finding the Fourth Proportional to 147,290.48, 203,380.80 and 120,070.88

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Solution

The fourth proportional to 147,290.48, 203,380.80 and 120,070.88 is: 165,795.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,290.48 : 203,380.80 = 120,070.88 : x
  2. Step 2: Convert to fraction form
    147,290.48/203,380.80 = 120,070.88/x
  3. Step 3: Cross multiply
    147,290.48x = 203,380.80 × 120,070.88
  4. Step 4: Simplify right side
    147,290.48x = 24,420,111,631.10
  5. Step 5: Solve for x
    x = 24,420,111,631.10/147,290.48
  6. Step 6: Final answer
    x = 165,795.59

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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.