Home / 131,712.53-181,763.29-71,283.19

Finding the Fourth Proportional to 131,712.53, 181,763.29 and 71,283.19

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Solution

The fourth proportional to 131,712.53, 181,763.29 and 71,283.19 is: 98,370.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,712.53 : 181,763.29 = 71,283.19 : x
  2. Step 2: Convert to fraction form
    131,712.53/181,763.29 = 71,283.19/x
  3. Step 3: Cross multiply
    131,712.53x = 181,763.29 × 71,283.19
  4. Step 4: Simplify right side
    131,712.53x = 12,956,667,111.60
  5. Step 5: Solve for x
    x = 12,956,667,111.60/131,712.53
  6. Step 6: Final answer
    x = 98,370.80

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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.