Home / 155,956.10-233,934.15-85,972.10

Finding the Fourth Proportional to 155,956.10, 233,934.15 and 85,972.10

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Solution

The fourth proportional to 155,956.10, 233,934.15 and 85,972.10 is: 128,958.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,956.10 : 233,934.15 = 85,972.10 : x
  2. Step 2: Convert to fraction form
    155,956.10/233,934.15 = 85,972.10/x
  3. Step 3: Cross multiply
    155,956.10x = 233,934.15 × 85,972.10
  4. Step 4: Simplify right side
    155,956.10x = 20,111,810,137.22
  5. Step 5: Solve for x
    x = 20,111,810,137.22/155,956.10
  6. Step 6: Final answer
    x = 128,958.15

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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.