Home / 103,869.77-143,336.12-58,557.15

Finding the Fourth Proportional to 103,869.77, 143,336.12 and 58,557.15

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Solution

The fourth proportional to 103,869.77, 143,336.12 and 58,557.15 is: 80,806.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,869.77 : 143,336.12 = 58,557.15 : x
  2. Step 2: Convert to fraction form
    103,869.77/143,336.12 = 58,557.15/x
  3. Step 3: Cross multiply
    103,869.77x = 143,336.12 × 58,557.15
  4. Step 4: Simplify right side
    103,869.77x = 8,393,354,386.47
  5. Step 5: Solve for x
    x = 8,393,354,386.47/103,869.77
  6. Step 6: Final answer
    x = 80,806.52

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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.