Home / 156,218.76-215,581.90-84,598.78

Finding the Fourth Proportional to 156,218.76, 215,581.90 and 84,598.78

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Solution

The fourth proportional to 156,218.76, 215,581.90 and 84,598.78 is: 116,746.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,218.76 : 215,581.90 = 84,598.78 : x
  2. Step 2: Convert to fraction form
    156,218.76/215,581.90 = 84,598.78/x
  3. Step 3: Cross multiply
    156,218.76x = 215,581.90 × 84,598.78
  4. Step 4: Simplify right side
    156,218.76x = 18,237,965,730.08
  5. Step 5: Solve for x
    x = 18,237,965,730.08/156,218.76
  6. Step 6: Final answer
    x = 116,746.32

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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.