Home / 131,827.50-181,921.05-71,396.76

Finding the Fourth Proportional to 131,827.50, 181,921.05 and 71,396.76

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Solution

The fourth proportional to 131,827.50, 181,921.05 and 71,396.76 is: 98,527.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,827.50 : 181,921.05 = 71,396.76 : x
  2. Step 2: Convert to fraction form
    131,827.50/181,921.05 = 71,396.76/x
  3. Step 3: Cross multiply
    131,827.50x = 181,921.05 × 71,396.76
  4. Step 4: Simplify right side
    131,827.50x = 12,988,574,127.60
  5. Step 5: Solve for x
    x = 12,988,574,127.60/131,827.50
  6. Step 6: Final answer
    x = 98,527.04

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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.