Home / 158,288.52-218,437.36-86,667.24

Finding the Fourth Proportional to 158,288.52, 218,437.36 and 86,667.24

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Solution

The fourth proportional to 158,288.52, 218,437.36 and 86,667.24 is: 119,600.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,288.52 : 218,437.36 = 86,667.24 : x
  2. Step 2: Convert to fraction form
    158,288.52/218,437.36 = 86,667.24/x
  3. Step 3: Cross multiply
    158,288.52x = 218,437.36 × 86,667.24
  4. Step 4: Simplify right side
    158,288.52x = 18,931,363,104.09
  5. Step 5: Solve for x
    x = 18,931,363,104.09/158,288.52
  6. Step 6: Final answer
    x = 119,600.35

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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.