Home / 131,651.02-181,677.58-71,221.42

Finding the Fourth Proportional to 131,651.02, 181,677.58 and 71,221.42

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Solution

The fourth proportional to 131,651.02, 181,677.58 and 71,221.42 is: 98,285.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,651.02 : 181,677.58 = 71,221.42 : x
  2. Step 2: Convert to fraction form
    131,651.02/181,677.58 = 71,221.42/x
  3. Step 3: Cross multiply
    131,651.02x = 181,677.58 × 71,221.42
  4. Step 4: Simplify right side
    131,651.02x = 12,939,335,229.76
  5. Step 5: Solve for x
    x = 12,939,335,229.76/131,651.02
  6. Step 6: Final answer
    x = 98,285.11

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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.