Home / 155,916.20-233,720.70-77,042.60

Finding the Fourth Proportional to 155,916.20, 233,720.70 and 77,042.60

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Solution

The fourth proportional to 155,916.20, 233,720.70 and 77,042.60 is: 115,488.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,916.20 : 233,720.70 = 77,042.60 : x
  2. Step 2: Convert to fraction form
    155,916.20/233,720.70 = 77,042.60/x
  3. Step 3: Cross multiply
    155,916.20x = 233,720.70 × 77,042.60
  4. Step 4: Simplify right side
    155,916.20x = 18,006,450,401.82
  5. Step 5: Solve for x
    x = 18,006,450,401.82/155,916.20
  6. Step 6: Final answer
    x = 115,488.00

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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.