Home / 125,739.18-173,522.18-72,028.89

Finding the Fourth Proportional to 125,739.18, 173,522.18 and 72,028.89

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Solution

The fourth proportional to 125,739.18, 173,522.18 and 72,028.89 is: 99,401.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,739.18 : 173,522.18 = 72,028.89 : x
  2. Step 2: Convert to fraction form
    125,739.18/173,522.18 = 72,028.89/x
  3. Step 3: Cross multiply
    125,739.18x = 173,522.18 × 72,028.89
  4. Step 4: Simplify right side
    125,739.18x = 12,498,610,195.85
  5. Step 5: Solve for x
    x = 12,498,610,195.85/125,739.18
  6. Step 6: Final answer
    x = 99,401.08

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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.