Home / 179,123.52-268,276.80-85,695.36

Finding the Fourth Proportional to 179,123.52, 268,276.80 and 85,695.36

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Solution

The fourth proportional to 179,123.52, 268,276.80 and 85,695.36 is: 128,347.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,123.52 : 268,276.80 = 85,695.36 : x
  2. Step 2: Convert to fraction form
    179,123.52/268,276.80 = 85,695.36/x
  3. Step 3: Cross multiply
    179,123.52x = 268,276.80 × 85,695.36
  4. Step 4: Simplify right side
    179,123.52x = 22,990,076,955.65
  5. Step 5: Solve for x
    x = 22,990,076,955.65/179,123.52
  6. Step 6: Final answer
    x = 128,347.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.