Home / 102,225.78-141,031.98-75,432.60

Finding the Fourth Proportional to 102,225.78, 141,031.98 and 75,432.60

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Solution

The fourth proportional to 102,225.78, 141,031.98 and 75,432.60 is: 104,067.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,225.78 : 141,031.98 = 75,432.60 : x
  2. Step 2: Convert to fraction form
    102,225.78/141,031.98 = 75,432.60/x
  3. Step 3: Cross multiply
    102,225.78x = 141,031.98 × 75,432.60
  4. Step 4: Simplify right side
    102,225.78x = 10,638,408,934.55
  5. Step 5: Solve for x
    x = 10,638,408,934.55/102,225.78
  6. Step 6: Final answer
    x = 104,067.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.