Home / 103,985.62-143,488.02-58,664.32

Finding the Fourth Proportional to 103,985.62, 143,488.02 and 58,664.32

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Solution

The fourth proportional to 103,985.62, 143,488.02 and 58,664.32 is: 80,949.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,985.62 : 143,488.02 = 58,664.32 : x
  2. Step 2: Convert to fraction form
    103,985.62/143,488.02 = 58,664.32/x
  3. Step 3: Cross multiply
    103,985.62x = 143,488.02 × 58,664.32
  4. Step 4: Simplify right side
    103,985.62x = 8,417,627,121.45
  5. Step 5: Solve for x
    x = 8,417,627,121.45/103,985.62
  6. Step 6: Final answer
    x = 80,949.92

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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.