Home / 108,539.32-149,788.88-63,210

Finding the Fourth Proportional to 108,539.32, 149,788.88 and 63,210

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Solution

The fourth proportional to 108,539.32, 149,788.88 and 63,210 is: 87,232.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,539.32 : 149,788.88 = 63,210 : x
  2. Step 2: Convert to fraction form
    108,539.32/149,788.88 = 63,210/x
  3. Step 3: Cross multiply
    108,539.32x = 149,788.88 × 63,210
  4. Step 4: Simplify right side
    108,539.32x = 9,468,155,104.80
  5. Step 5: Solve for x
    x = 9,468,155,104.80/108,539.32
  6. Step 6: Final answer
    x = 87,232.49

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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.