Home / 156,574.34-234,855.13-72,306.80

Finding the Fourth Proportional to 156,574.34, 234,855.13 and 72,306.80

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Solution

The fourth proportional to 156,574.34, 234,855.13 and 72,306.80 is: 108,457.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,574.34 : 234,855.13 = 72,306.80 : x
  2. Step 2: Convert to fraction form
    156,574.34/234,855.13 = 72,306.80/x
  3. Step 3: Cross multiply
    156,574.34x = 234,855.13 × 72,306.80
  4. Step 4: Simplify right side
    156,574.34x = 16,981,622,913.88
  5. Step 5: Solve for x
    x = 16,981,622,913.88/156,574.34
  6. Step 6: Final answer
    x = 108,457.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.