Home / 125,328.60-172,952.28-68,740.20

Finding the Fourth Proportional to 125,328.60, 172,952.28 and 68,740.20

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Solution

The fourth proportional to 125,328.60, 172,952.28 and 68,740.20 is: 94,860.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,328.60 : 172,952.28 = 68,740.20 : x
  2. Step 2: Convert to fraction form
    125,328.60/172,952.28 = 68,740.20/x
  3. Step 3: Cross multiply
    125,328.60x = 172,952.28 × 68,740.20
  4. Step 4: Simplify right side
    125,328.60x = 11,888,774,317.66
  5. Step 5: Solve for x
    x = 11,888,774,317.66/125,328.60
  6. Step 6: Final answer
    x = 94,860.82

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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.