Home / 101,869.83-140,573.69-56,545.60

Finding the Fourth Proportional to 101,869.83, 140,573.69 and 56,545.60

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Solution

The fourth proportional to 101,869.83, 140,573.69 and 56,545.60 is: 78,029.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,869.83 : 140,573.69 = 56,545.60 : x
  2. Step 2: Convert to fraction form
    101,869.83/140,573.69 = 56,545.60/x
  3. Step 3: Cross multiply
    101,869.83x = 140,573.69 × 56,545.60
  4. Step 4: Simplify right side
    101,869.83x = 7,948,823,645.26
  5. Step 5: Solve for x
    x = 7,948,823,645.26/101,869.83
  6. Step 6: Final answer
    x = 78,029.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.