Home / 158,124.11-218,212.98-86,502.59

Finding the Fourth Proportional to 158,124.11, 218,212.98 and 86,502.59

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Solution

The fourth proportional to 158,124.11, 218,212.98 and 86,502.59 is: 119,374.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,124.11 : 218,212.98 = 86,502.59 : x
  2. Step 2: Convert to fraction form
    158,124.11/218,212.98 = 86,502.59/x
  3. Step 3: Cross multiply
    158,124.11x = 218,212.98 × 86,502.59
  4. Step 4: Simplify right side
    158,124.11x = 18,875,986,850.55
  5. Step 5: Solve for x
    x = 18,875,986,850.55/158,124.11
  6. Step 6: Final answer
    x = 119,374.51

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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.