Home / 152,029.08-209,800.10-83,118.78

Finding the Fourth Proportional to 152,029.08, 209,800.10 and 83,118.78

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Solution

The fourth proportional to 152,029.08, 209,800.10 and 83,118.78 is: 114,703.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,029.08 : 209,800.10 = 83,118.78 : x
  2. Step 2: Convert to fraction form
    152,029.08/209,800.10 = 83,118.78/x
  3. Step 3: Cross multiply
    152,029.08x = 209,800.10 × 83,118.78
  4. Step 4: Simplify right side
    152,029.08x = 17,438,328,355.88
  5. Step 5: Solve for x
    x = 17,438,328,355.88/152,029.08
  6. Step 6: Final answer
    x = 114,703.90

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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.