Home / 154,109.95-231,209.22-64,135.15

Finding the Fourth Proportional to 154,109.95, 231,209.22 and 64,135.15

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Solution

The fourth proportional to 154,109.95, 231,209.22 and 64,135.15 is: 96,221.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,109.95 : 231,209.22 = 64,135.15 : x
  2. Step 2: Convert to fraction form
    154,109.95/231,209.22 = 64,135.15/x
  3. Step 3: Cross multiply
    154,109.95x = 231,209.22 × 64,135.15
  4. Step 4: Simplify right side
    154,109.95x = 14,828,638,006.08
  5. Step 5: Solve for x
    x = 14,828,638,006.08/154,109.95
  6. Step 6: Final answer
    x = 96,221.16

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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.