Home / 125,146.22-172,700.40-67,784.12

Finding the Fourth Proportional to 125,146.22, 172,700.40 and 67,784.12

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Solution

The fourth proportional to 125,146.22, 172,700.40 and 67,784.12 is: 93,541.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,146.22 : 172,700.40 = 67,784.12 : x
  2. Step 2: Convert to fraction form
    125,146.22/172,700.40 = 67,784.12/x
  3. Step 3: Cross multiply
    125,146.22x = 172,700.40 × 67,784.12
  4. Step 4: Simplify right side
    125,146.22x = 11,706,344,637.65
  5. Step 5: Solve for x
    x = 11,706,344,637.65/125,146.22
  6. Step 6: Final answer
    x = 93,541.34

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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.