Home / 156,275.42-215,660.04-84,655.41

Finding the Fourth Proportional to 156,275.42, 215,660.04 and 84,655.41

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Solution

The fourth proportional to 156,275.42, 215,660.04 and 84,655.41 is: 116,824.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,275.42 : 215,660.04 = 84,655.41 : x
  2. Step 2: Convert to fraction form
    156,275.42/215,660.04 = 84,655.41/x
  3. Step 3: Cross multiply
    156,275.42x = 215,660.04 × 84,655.41
  4. Step 4: Simplify right side
    156,275.42x = 18,256,789,106.82
  5. Step 5: Solve for x
    x = 18,256,789,106.82/156,275.42
  6. Step 6: Final answer
    x = 116,824.45

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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.