Home / 124,772.80-172,184.40-68,182.88

Finding the Fourth Proportional to 124,772.80, 172,184.40 and 68,182.88

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Solution

The fourth proportional to 124,772.80, 172,184.40 and 68,182.88 is: 94,091.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,772.80 : 172,184.40 = 68,182.88 : x
  2. Step 2: Convert to fraction form
    124,772.80/172,184.40 = 68,182.88/x
  3. Step 3: Cross multiply
    124,772.80x = 172,184.40 × 68,182.88
  4. Step 4: Simplify right side
    124,772.80x = 11,740,028,283.07
  5. Step 5: Solve for x
    x = 11,740,028,283.07/124,772.80
  6. Step 6: Final answer
    x = 94,091.25

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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.