Home / 155,409.70-233,114.55-66,648.10

Finding the Fourth Proportional to 155,409.70, 233,114.55 and 66,648.10

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Solution

The fourth proportional to 155,409.70, 233,114.55 and 66,648.10 is: 99,972.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,409.70 : 233,114.55 = 66,648.10 : x
  2. Step 2: Convert to fraction form
    155,409.70/233,114.55 = 66,648.10/x
  3. Step 3: Cross multiply
    155,409.70x = 233,114.55 × 66,648.10
  4. Step 4: Simplify right side
    155,409.70x = 15,536,641,839.86
  5. Step 5: Solve for x
    x = 15,536,641,839.86/155,409.70
  6. Step 6: Final answer
    x = 99,972.15

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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.