Home / 108,947.78-163,432.29-42,393.32

Finding the Fourth Proportional to 108,947.78, 163,432.29 and 42,393.32

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Solution

The fourth proportional to 108,947.78, 163,432.29 and 42,393.32 is: 63,594.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,947.78 : 163,432.29 = 42,393.32 : x
  2. Step 2: Convert to fraction form
    108,947.78/163,432.29 = 42,393.32/x
  3. Step 3: Cross multiply
    108,947.78x = 163,432.29 × 42,393.32
  4. Step 4: Simplify right side
    108,947.78x = 6,928,437,368.30
  5. Step 5: Solve for x
    x = 6,928,437,368.30/108,947.78
  6. Step 6: Final answer
    x = 63,594.11

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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.