Home / 143,830.79-215,746.00-38,649.77

Finding the Fourth Proportional to 143,830.79, 215,746.00 and 38,649.77

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Solution

The fourth proportional to 143,830.79, 215,746.00 and 38,649.77 is: 57,974.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,830.79 : 215,746.00 = 38,649.77 : x
  2. Step 2: Convert to fraction form
    143,830.79/215,746.00 = 38,649.77/x
  3. Step 3: Cross multiply
    143,830.79x = 215,746.00 × 38,649.77
  4. Step 4: Simplify right side
    143,830.79x = 8,338,532,006.44
  5. Step 5: Solve for x
    x = 8,338,532,006.44/143,830.79
  6. Step 6: Final answer
    x = 57,974.60

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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.