Home / 156,218.55-215,581.80-84,598.68

Finding the Fourth Proportional to 156,218.55, 215,581.80 and 84,598.68

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Solution

The fourth proportional to 156,218.55, 215,581.80 and 84,598.68 is: 116,746.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,218.55 : 215,581.80 = 84,598.68 : x
  2. Step 2: Convert to fraction form
    156,218.55/215,581.80 = 84,598.68/x
  3. Step 3: Cross multiply
    156,218.55x = 215,581.80 × 84,598.68
  4. Step 4: Simplify right side
    156,218.55x = 18,237,935,712.02
  5. Step 5: Solve for x
    x = 18,237,935,712.02/156,218.55
  6. Step 6: Final answer
    x = 116,746.29

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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.