Home / 128,339.79-192,522.90-48,445.06

Finding the Fourth Proportional to 128,339.79, 192,522.90 and 48,445.06

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Solution

The fourth proportional to 128,339.79, 192,522.90 and 48,445.06 is: 72,672.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,339.79 : 192,522.90 = 48,445.06 : x
  2. Step 2: Convert to fraction form
    128,339.79/192,522.90 = 48,445.06/x
  3. Step 3: Cross multiply
    128,339.79x = 192,522.90 × 48,445.06
  4. Step 4: Simplify right side
    128,339.79x = 9,326,782,778.90
  5. Step 5: Solve for x
    x = 9,326,782,778.90/128,339.79
  6. Step 6: Final answer
    x = 72,672.57

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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.