Home / 125,743.78-173,530.05-69,158.80

Finding the Fourth Proportional to 125,743.78, 173,530.05 and 69,158.80

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Solution

The fourth proportional to 125,743.78, 173,530.05 and 69,158.80 is: 95,441.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,743.78 : 173,530.05 = 69,158.80 : x
  2. Step 2: Convert to fraction form
    125,743.78/173,530.05 = 69,158.80/x
  3. Step 3: Cross multiply
    125,743.78x = 173,530.05 × 69,158.80
  4. Step 4: Simplify right side
    125,743.78x = 12,001,130,021.94
  5. Step 5: Solve for x
    x = 12,001,130,021.94/125,743.78
  6. Step 6: Final answer
    x = 95,441.14

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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.