Home / 156,240.74-215,612.01-84,621.04

Finding the Fourth Proportional to 156,240.74, 215,612.01 and 84,621.04

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Solution

The fourth proportional to 156,240.74, 215,612.01 and 84,621.04 is: 116,776.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,240.74 : 215,612.01 = 84,621.04 : x
  2. Step 2: Convert to fraction form
    156,240.74/215,612.01 = 84,621.04/x
  3. Step 3: Cross multiply
    156,240.74x = 215,612.01 × 84,621.04
  4. Step 4: Simplify right side
    156,240.74x = 18,245,312,522.69
  5. Step 5: Solve for x
    x = 18,245,312,522.69/156,240.74
  6. Step 6: Final answer
    x = 116,776.92

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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.