Home / 109,437.18-150,988.57-86,393.95

Finding the Fourth Proportional to 109,437.18, 150,988.57 and 86,393.95

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Solution

The fourth proportional to 109,437.18, 150,988.57 and 86,393.95 is: 119,196.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,437.18 : 150,988.57 = 86,393.95 : x
  2. Step 2: Convert to fraction form
    109,437.18/150,988.57 = 86,393.95/x
  3. Step 3: Cross multiply
    109,437.18x = 150,988.57 × 86,393.95
  4. Step 4: Simplify right side
    109,437.18x = 13,044,498,967.15
  5. Step 5: Solve for x
    x = 13,044,498,967.15/109,437.18
  6. Step 6: Final answer
    x = 119,196.23

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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.