Home / 155,935.20-233,749.20-77,061.60

Finding the Fourth Proportional to 155,935.20, 233,749.20 and 77,061.60

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Solution

The fourth proportional to 155,935.20, 233,749.20 and 77,061.60 is: 115,516.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,935.20 : 233,749.20 = 77,061.60 : x
  2. Step 2: Convert to fraction form
    155,935.20/233,749.20 = 77,061.60/x
  3. Step 3: Cross multiply
    155,935.20x = 233,749.20 × 77,061.60
  4. Step 4: Simplify right side
    155,935.20x = 18,013,087,350.72
  5. Step 5: Solve for x
    x = 18,013,087,350.72/155,935.20
  6. Step 6: Final answer
    x = 115,516.49

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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.