Home / 103,680.78-155,488.77-33,545.58

Finding the Fourth Proportional to 103,680.78, 155,488.77 and 33,545.58

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Solution

The fourth proportional to 103,680.78, 155,488.77 and 33,545.58 is: 50,307.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,680.78 : 155,488.77 = 33,545.58 : x
  2. Step 2: Convert to fraction form
    103,680.78/155,488.77 = 33,545.58/x
  3. Step 3: Cross multiply
    103,680.78x = 155,488.77 × 33,545.58
  4. Step 4: Simplify right side
    103,680.78x = 5,215,960,973.14
  5. Step 5: Solve for x
    x = 5,215,960,973.14/103,680.78
  6. Step 6: Final answer
    x = 50,307.89

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1.5x scale

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.