Home / 103,238.88-142,513.20-69,750.24

Finding the Fourth Proportional to 103,238.88, 142,513.20 and 69,750.24

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Solution

The fourth proportional to 103,238.88, 142,513.20 and 69,750.24 is: 96,284.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,238.88 : 142,513.20 = 69,750.24 : x
  2. Step 2: Convert to fraction form
    103,238.88/142,513.20 = 69,750.24/x
  3. Step 3: Cross multiply
    103,238.88x = 142,513.20 × 69,750.24
  4. Step 4: Simplify right side
    103,238.88x = 9,940,329,903.17
  5. Step 5: Solve for x
    x = 9,940,329,903.17/103,238.88
  6. Step 6: Final answer
    x = 96,284.75

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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.