Home / 189,445.15-284,165.25-54,512.74

Finding the Fourth Proportional to 189,445.15, 284,165.25 and 54,512.74

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Solution

The fourth proportional to 189,445.15, 284,165.25 and 54,512.74 is: 81,768.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,445.15 : 284,165.25 = 54,512.74 : x
  2. Step 2: Convert to fraction form
    189,445.15/284,165.25 = 54,512.74/x
  3. Step 3: Cross multiply
    189,445.15x = 284,165.25 × 54,512.74
  4. Step 4: Simplify right side
    189,445.15x = 15,490,626,390.29
  5. Step 5: Solve for x
    x = 15,490,626,390.29/189,445.15
  6. Step 6: Final answer
    x = 81,768.40

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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.