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Finding the Fourth Proportional to 178,040.61, 267,060.09 and 72,859.59

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Solution

The fourth proportional to 178,040.61, 267,060.09 and 72,859.59 is: 109,289.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,040.61 : 267,060.09 = 72,859.59 : x
  2. Step 2: Convert to fraction form
    178,040.61/267,060.09 = 72,859.59/x
  3. Step 3: Cross multiply
    178,040.61x = 267,060.09 × 72,859.59
  4. Step 4: Simplify right side
    178,040.61x = 19,457,888,662.76
  5. Step 5: Solve for x
    x = 19,457,888,662.76/178,040.61
  6. Step 6: Final answer
    x = 109,289.05

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1.5x scale

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.