Home / 108,077.12-149,120.16-63,356.48

Finding the Fourth Proportional to 108,077.12, 149,120.16 and 63,356.48

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Solution

The fourth proportional to 108,077.12, 149,120.16 and 63,356.48 is: 87,416.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,077.12 : 149,120.16 = 63,356.48 : x
  2. Step 2: Convert to fraction form
    108,077.12/149,120.16 = 63,356.48/x
  3. Step 3: Cross multiply
    108,077.12x = 149,120.16 × 63,356.48
  4. Step 4: Simplify right side
    108,077.12x = 9,447,728,434.64
  5. Step 5: Solve for x
    x = 9,447,728,434.64/108,077.12
  6. Step 6: Final answer
    x = 87,416.55

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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.