Home / 178,128.78-267,168.45-45,000.84

Finding the Fourth Proportional to 178,128.78, 267,168.45 and 45,000.84

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Solution

The fourth proportional to 178,128.78, 267,168.45 and 45,000.84 is: 67,495.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,128.78 : 267,168.45 = 45,000.84 : x
  2. Step 2: Convert to fraction form
    178,128.78/267,168.45 = 45,000.84/x
  3. Step 3: Cross multiply
    178,128.78x = 267,168.45 × 45,000.84
  4. Step 4: Simplify right side
    178,128.78x = 12,022,804,671.50
  5. Step 5: Solve for x
    x = 12,022,804,671.50/178,128.78
  6. Step 6: Final answer
    x = 67,495.01

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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.