Home / 155,906.56-233,750.98-79,857.40

Finding the Fourth Proportional to 155,906.56, 233,750.98 and 79,857.40

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Solution

The fourth proportional to 155,906.56, 233,750.98 and 79,857.40 is: 119,730.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,906.56 : 233,750.98 = 79,857.40 : x
  2. Step 2: Convert to fraction form
    155,906.56/233,750.98 = 79,857.40/x
  3. Step 3: Cross multiply
    155,906.56x = 233,750.98 × 79,857.40
  4. Step 4: Simplify right side
    155,906.56x = 18,666,745,510.25
  5. Step 5: Solve for x
    x = 18,666,745,510.25/155,906.56
  6. Step 6: Final answer
    x = 119,730.34

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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.