Home / 158,288.19-218,439-93,760.98

Finding the Fourth Proportional to 158,288.19, 218,439 and 93,760.98

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Solution

The fourth proportional to 158,288.19, 218,439 and 93,760.98 is: 129,390.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,288.19 : 218,439 = 93,760.98 : x
  2. Step 2: Convert to fraction form
    158,288.19/218,439 = 93,760.98/x
  3. Step 3: Cross multiply
    158,288.19x = 218,439 × 93,760.98
  4. Step 4: Simplify right side
    158,288.19x = 20,481,054,710.22
  5. Step 5: Solve for x
    x = 20,481,054,710.22/158,288.19
  6. Step 6: Final answer
    x = 129,390.92

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1.5x scale

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.