Home / 103,554.87-155,233.80-66,009.53

Finding the Fourth Proportional to 103,554.87, 155,233.80 and 66,009.53

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Solution

The fourth proportional to 103,554.87, 155,233.80 and 66,009.53 is: 98,951.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,554.87 : 155,233.80 = 66,009.53 : x
  2. Step 2: Convert to fraction form
    103,554.87/155,233.80 = 66,009.53/x
  3. Step 3: Cross multiply
    103,554.87x = 155,233.80 × 66,009.53
  4. Step 4: Simplify right side
    103,554.87x = 10,246,909,401.95
  5. Step 5: Solve for x
    x = 10,246,909,401.95/103,554.87
  6. Step 6: Final answer
    x = 98,951.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.