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Finding the Fourth Proportional to 178,758.64, 268,133.84 and 89,988.30

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Solution

The fourth proportional to 178,758.64, 268,133.84 and 89,988.30 is: 134,980.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,758.64 : 268,133.84 = 89,988.30 : x
  2. Step 2: Convert to fraction form
    178,758.64/268,133.84 = 89,988.30/x
  3. Step 3: Cross multiply
    178,758.64x = 268,133.84 × 89,988.30
  4. Step 4: Simplify right side
    178,758.64x = 24,128,908,434.07
  5. Step 5: Solve for x
    x = 24,128,908,434.07/178,758.64
  6. Step 6: Final answer
    x = 134,980.38

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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.