Home / 108,015.12-149,041.08-62,698.32

Finding the Fourth Proportional to 108,015.12, 149,041.08 and 62,698.32

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Solution

The fourth proportional to 108,015.12, 149,041.08 and 62,698.32 is: 86,512.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,015.12 : 149,041.08 = 62,698.32 : x
  2. Step 2: Convert to fraction form
    108,015.12/149,041.08 = 62,698.32/x
  3. Step 3: Cross multiply
    108,015.12x = 149,041.08 × 62,698.32
  4. Step 4: Simplify right side
    108,015.12x = 9,344,625,326.99
  5. Step 5: Solve for x
    x = 9,344,625,326.99/108,015.12
  6. Step 6: Final answer
    x = 86,512.20

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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.