Home / 102,140.43-140,915.10-63,360.33

Finding the Fourth Proportional to 102,140.43, 140,915.10 and 63,360.33

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Solution

The fourth proportional to 102,140.43, 140,915.10 and 63,360.33 is: 87,413.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,140.43 : 140,915.10 = 63,360.33 : x
  2. Step 2: Convert to fraction form
    102,140.43/140,915.10 = 63,360.33/x
  3. Step 3: Cross multiply
    102,140.43x = 140,915.10 × 63,360.33
  4. Step 4: Simplify right side
    102,140.43x = 8,928,427,237.98
  5. Step 5: Solve for x
    x = 8,928,427,237.98/102,140.43
  6. Step 6: Final answer
    x = 87,413.25

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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.