Home / 125,415.55-173,062.04-74,419.50

Finding the Fourth Proportional to 125,415.55, 173,062.04 and 74,419.50

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Solution

The fourth proportional to 125,415.55, 173,062.04 and 74,419.50 is: 102,692.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,415.55 : 173,062.04 = 74,419.50 : x
  2. Step 2: Convert to fraction form
    125,415.55/173,062.04 = 74,419.50/x
  3. Step 3: Cross multiply
    125,415.55x = 173,062.04 × 74,419.50
  4. Step 4: Simplify right side
    125,415.55x = 12,879,190,113.68
  5. Step 5: Solve for x
    x = 12,879,190,113.68/125,415.55
  6. Step 6: Final answer
    x = 102,692.13

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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.