Home / 103,932.40-143,423.22-65,712.52

Finding the Fourth Proportional to 103,932.40, 143,423.22 and 65,712.52

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Solution

The fourth proportional to 103,932.40, 143,423.22 and 65,712.52 is: 90,681.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,932.40 : 143,423.22 = 65,712.52 : x
  2. Step 2: Convert to fraction form
    103,932.40/143,423.22 = 65,712.52/x
  3. Step 3: Cross multiply
    103,932.40x = 143,423.22 × 65,712.52
  4. Step 4: Simplify right side
    103,932.40x = 9,424,701,212.71
  5. Step 5: Solve for x
    x = 9,424,701,212.71/103,932.40
  6. Step 6: Final answer
    x = 90,681.07

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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.