Home / 156,275.40-215,660.58-84,655.20

Finding the Fourth Proportional to 156,275.40, 215,660.58 and 84,655.20

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Solution

The fourth proportional to 156,275.40, 215,660.58 and 84,655.20 is: 116,824.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,275.40 : 215,660.58 = 84,655.20 : x
  2. Step 2: Convert to fraction form
    156,275.40/215,660.58 = 84,655.20/x
  3. Step 3: Cross multiply
    156,275.40x = 215,660.58 × 84,655.20
  4. Step 4: Simplify right side
    156,275.40x = 18,256,789,532.02
  5. Step 5: Solve for x
    x = 18,256,789,532.02/156,275.40
  6. Step 6: Final answer
    x = 116,824.46

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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.