Home / 156,262.36-215,641.96-84,642.20

Finding the Fourth Proportional to 156,262.36, 215,641.96 and 84,642.20

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Solution

The fourth proportional to 156,262.36, 215,641.96 and 84,642.20 is: 116,806.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,262.36 : 215,641.96 = 84,642.20 : x
  2. Step 2: Convert to fraction form
    156,262.36/215,641.96 = 84,642.20/x
  3. Step 3: Cross multiply
    156,262.36x = 215,641.96 × 84,642.20
  4. Step 4: Simplify right side
    156,262.36x = 18,252,409,906.71
  5. Step 5: Solve for x
    x = 18,252,409,906.71/156,262.36
  6. Step 6: Final answer
    x = 116,806.18

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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.