Home / 131,649.23-181,675.20-71,219.69

Finding the Fourth Proportional to 131,649.23, 181,675.20 and 71,219.69

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Solution

The fourth proportional to 131,649.23, 181,675.20 and 71,219.69 is: 98,282.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,649.23 : 181,675.20 = 71,219.69 : x
  2. Step 2: Convert to fraction form
    131,649.23/181,675.20 = 71,219.69/x
  3. Step 3: Cross multiply
    131,649.23x = 181,675.20 × 71,219.69
  4. Step 4: Simplify right side
    131,649.23x = 12,938,851,464.67
  5. Step 5: Solve for x
    x = 12,938,851,464.67/131,649.23
  6. Step 6: Final answer
    x = 98,282.77

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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.