Home / 103,156.02-142,363.26-57,838.14

Finding the Fourth Proportional to 103,156.02, 142,363.26 and 57,838.14

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Solution

The fourth proportional to 103,156.02, 142,363.26 and 57,838.14 is: 79,821.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,156.02 : 142,363.26 = 57,838.14 : x
  2. Step 2: Convert to fraction form
    103,156.02/142,363.26 = 57,838.14/x
  3. Step 3: Cross multiply
    103,156.02x = 142,363.26 × 57,838.14
  4. Step 4: Simplify right side
    103,156.02x = 8,234,026,162.74
  5. Step 5: Solve for x
    x = 8,234,026,162.74/103,156.02
  6. Step 6: Final answer
    x = 79,821.09

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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.