Home / 158,110.47-218,194.29-86,488.95

Finding the Fourth Proportional to 158,110.47, 218,194.29 and 86,488.95

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Solution

The fourth proportional to 158,110.47, 218,194.29 and 86,488.95 is: 119,355.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,110.47 : 218,194.29 = 86,488.95 : x
  2. Step 2: Convert to fraction form
    158,110.47/218,194.29 = 86,488.95/x
  3. Step 3: Cross multiply
    158,110.47x = 218,194.29 × 86,488.95
  4. Step 4: Simplify right side
    158,110.47x = 18,871,395,038.10
  5. Step 5: Solve for x
    x = 18,871,395,038.10/158,110.47
  6. Step 6: Final answer
    x = 119,355.76

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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.