Home / 102,126.92-140,877.63-61,280.48

Finding the Fourth Proportional to 102,126.92, 140,877.63 and 61,280.48

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Solution

The fourth proportional to 102,126.92, 140,877.63 and 61,280.48 is: 84,532.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,126.92 : 140,877.63 = 61,280.48 : x
  2. Step 2: Convert to fraction form
    102,126.92/140,877.63 = 61,280.48/x
  3. Step 3: Cross multiply
    102,126.92x = 140,877.63 × 61,280.48
  4. Step 4: Simplify right side
    102,126.92x = 8,633,048,083.27
  5. Step 5: Solve for x
    x = 8,633,048,083.27/102,126.92
  6. Step 6: Final answer
    x = 84,532.55

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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.