Home / 125,415.12-173,061.41-74,419.07

Finding the Fourth Proportional to 125,415.12, 173,061.41 and 74,419.07

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Solution

The fourth proportional to 125,415.12, 173,061.41 and 74,419.07 is: 102,691.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,415.12 : 173,061.41 = 74,419.07 : x
  2. Step 2: Convert to fraction form
    125,415.12/173,061.41 = 74,419.07/x
  3. Step 3: Cross multiply
    125,415.12x = 173,061.41 × 74,419.07
  4. Step 4: Simplify right side
    125,415.12x = 12,879,069,185.09
  5. Step 5: Solve for x
    x = 12,879,069,185.09/125,415.12
  6. Step 6: Final answer
    x = 102,691.52

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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.