Home / 158,053.11-218,113.88-86,433.12

Finding the Fourth Proportional to 158,053.11, 218,113.88 and 86,433.12

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Solution

The fourth proportional to 158,053.11, 218,113.88 and 86,433.12 is: 119,278.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,053.11 : 218,113.88 = 86,433.12 : x
  2. Step 2: Convert to fraction form
    158,053.11/218,113.88 = 86,433.12/x
  3. Step 3: Cross multiply
    158,053.11x = 218,113.88 × 86,433.12
  4. Step 4: Simplify right side
    158,053.11x = 18,852,262,731.54
  5. Step 5: Solve for x
    x = 18,852,262,731.54/158,053.11
  6. Step 6: Final answer
    x = 119,278.02

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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.