Home / 154,583.76-231,718.72-87,886.08

Finding the Fourth Proportional to 154,583.76, 231,718.72 and 87,886.08

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Solution

The fourth proportional to 154,583.76, 231,718.72 and 87,886.08 is: 131,739.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,583.76 : 231,718.72 = 87,886.08 : x
  2. Step 2: Convert to fraction form
    154,583.76/231,718.72 = 87,886.08/x
  3. Step 3: Cross multiply
    154,583.76x = 231,718.72 × 87,886.08
  4. Step 4: Simplify right side
    154,583.76x = 20,364,849,963.42
  5. Step 5: Solve for x
    x = 20,364,849,963.42/154,583.76
  6. Step 6: Final answer
    x = 131,739.91

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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.