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Finding the Fourth Proportional to 110,356.37, 152,281.25 and 61,947.20

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Solution

The fourth proportional to 110,356.37, 152,281.25 and 61,947.20 is: 85,481.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,356.37 : 152,281.25 = 61,947.20 : x
  2. Step 2: Convert to fraction form
    110,356.37/152,281.25 = 61,947.20/x
  3. Step 3: Cross multiply
    110,356.37x = 152,281.25 × 61,947.20
  4. Step 4: Simplify right side
    110,356.37x = 9,433,395,978.86
  5. Step 5: Solve for x
    x = 9,433,395,978.86/110,356.37
  6. Step 6: Final answer
    x = 85,481.21

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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.