Home / 170,922.90-256,211.55-77,495.70

Finding the Fourth Proportional to 170,922.90, 256,211.55 and 77,495.70

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Solution

The fourth proportional to 170,922.90, 256,211.55 and 77,495.70 is: 116,165.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,922.90 : 256,211.55 = 77,495.70 : x
  2. Step 2: Convert to fraction form
    170,922.90/256,211.55 = 77,495.70/x
  3. Step 3: Cross multiply
    170,922.90x = 256,211.55 × 77,495.70
  4. Step 4: Simplify right side
    170,922.90x = 19,855,293,415.34
  5. Step 5: Solve for x
    x = 19,855,293,415.34/170,922.90
  6. Step 6: Final answer
    x = 116,165.20

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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.