Home / 156,070.12-215,376.06-84,451.40

Finding the Fourth Proportional to 156,070.12, 215,376.06 and 84,451.40

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Solution

The fourth proportional to 156,070.12, 215,376.06 and 84,451.40 is: 116,542.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,070.12 : 215,376.06 = 84,451.40 : x
  2. Step 2: Convert to fraction form
    156,070.12/215,376.06 = 84,451.40/x
  3. Step 3: Cross multiply
    156,070.12x = 215,376.06 × 84,451.40
  4. Step 4: Simplify right side
    156,070.12x = 18,188,809,793.48
  5. Step 5: Solve for x
    x = 18,188,809,793.48/156,070.12
  6. Step 6: Final answer
    x = 116,542.55

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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.