Home / 103,517.69-142,859.48-58,209.94

Finding the Fourth Proportional to 103,517.69, 142,859.48 and 58,209.94

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Solution

The fourth proportional to 103,517.69, 142,859.48 and 58,209.94 is: 80,332.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,517.69 : 142,859.48 = 58,209.94 : x
  2. Step 2: Convert to fraction form
    103,517.69/142,859.48 = 58,209.94/x
  3. Step 3: Cross multiply
    103,517.69x = 142,859.48 × 58,209.94
  4. Step 4: Simplify right side
    103,517.69x = 8,315,841,044.93
  5. Step 5: Solve for x
    x = 8,315,841,044.93/103,517.69
  6. Step 6: Final answer
    x = 80,332.56

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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.