Home / 131,706.95-181,755.59-71,278.02

Finding the Fourth Proportional to 131,706.95, 181,755.59 and 71,278.02

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Solution

The fourth proportional to 131,706.95, 181,755.59 and 71,278.02 is: 98,363.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,706.95 : 181,755.59 = 71,278.02 : x
  2. Step 2: Convert to fraction form
    131,706.95/181,755.59 = 71,278.02/x
  3. Step 3: Cross multiply
    131,706.95x = 181,755.59 × 71,278.02
  4. Step 4: Simplify right side
    131,706.95x = 12,955,179,452.17
  5. Step 5: Solve for x
    x = 12,955,179,452.17/131,706.95
  6. Step 6: Final answer
    x = 98,363.67

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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.