Home / 103,509.29-142,839.52-58,189.19

Finding the Fourth Proportional to 103,509.29, 142,839.52 and 58,189.19

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Solution

The fourth proportional to 103,509.29, 142,839.52 and 58,189.19 is: 80,299.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,509.29 : 142,839.52 = 58,189.19 : x
  2. Step 2: Convert to fraction form
    103,509.29/142,839.52 = 58,189.19/x
  3. Step 3: Cross multiply
    103,509.29x = 142,839.52 × 58,189.19
  4. Step 4: Simplify right side
    103,509.29x = 8,311,715,109.12
  5. Step 5: Solve for x
    x = 8,311,715,109.12/103,509.29
  6. Step 6: Final answer
    x = 80,299.22

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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.