Home / 132,139.49-182,503.88-87,019.14

Finding the Fourth Proportional to 132,139.49, 182,503.88 and 87,019.14

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Solution

The fourth proportional to 132,139.49, 182,503.88 and 87,019.14 is: 120,186.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,139.49 : 182,503.88 = 87,019.14 : x
  2. Step 2: Convert to fraction form
    132,139.49/182,503.88 = 87,019.14/x
  3. Step 3: Cross multiply
    132,139.49x = 182,503.88 × 87,019.14
  4. Step 4: Simplify right side
    132,139.49x = 15,881,330,249.17
  5. Step 5: Solve for x
    x = 15,881,330,249.17/132,139.49
  6. Step 6: Final answer
    x = 120,186.11

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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.