Home / 103,447.17-142,811.64-69,633.45

Finding the Fourth Proportional to 103,447.17, 142,811.64 and 69,633.45

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Solution

The fourth proportional to 103,447.17, 142,811.64 and 69,633.45 is: 96,130.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,447.17 : 142,811.64 = 69,633.45 : x
  2. Step 2: Convert to fraction form
    103,447.17/142,811.64 = 69,633.45/x
  3. Step 3: Cross multiply
    103,447.17x = 142,811.64 × 69,633.45
  4. Step 4: Simplify right side
    103,447.17x = 9,944,467,193.36
  5. Step 5: Solve for x
    x = 9,944,467,193.36/103,447.17
  6. Step 6: Final answer
    x = 96,130.88

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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.