Home / 125,031.78-187,547.73-54,911.70

Finding the Fourth Proportional to 125,031.78, 187,547.73 and 54,911.70

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Solution

The fourth proportional to 125,031.78, 187,547.73 and 54,911.70 is: 82,367.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,031.78 : 187,547.73 = 54,911.70 : x
  2. Step 2: Convert to fraction form
    125,031.78/187,547.73 = 54,911.70/x
  3. Step 3: Cross multiply
    125,031.78x = 187,547.73 × 54,911.70
  4. Step 4: Simplify right side
    125,031.78x = 10,298,564,685.44
  5. Step 5: Solve for x
    x = 10,298,564,685.44/125,031.78
  6. Step 6: Final answer
    x = 82,367.58

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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.