Home / 108,340.20-149,499-63,015.84

Finding the Fourth Proportional to 108,340.20, 149,499 and 63,015.84

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Solution

The fourth proportional to 108,340.20, 149,499 and 63,015.84 is: 86,955.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,340.20 : 149,499 = 63,015.84 : x
  2. Step 2: Convert to fraction form
    108,340.20/149,499 = 63,015.84/x
  3. Step 3: Cross multiply
    108,340.20x = 149,499 × 63,015.84
  4. Step 4: Simplify right side
    108,340.20x = 9,420,805,064.16
  5. Step 5: Solve for x
    x = 9,420,805,064.16/108,340.20
  6. Step 6: Final answer
    x = 86,955.77

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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.