Home / 325,580.10-487,981.35-136,040.10

Finding the Fourth Proportional to 325,580.10, 487,981.35 and 136,040.10

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Solution

The fourth proportional to 325,580.10, 487,981.35 and 136,040.10 is: 203,897.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,580.10 : 487,981.35 = 136,040.10 : x
  2. Step 2: Convert to fraction form
    325,580.10/487,981.35 = 136,040.10/x
  3. Step 3: Cross multiply
    325,580.10x = 487,981.35 × 136,040.10
  4. Step 4: Simplify right side
    325,580.10x = 66,385,031,652.14
  5. Step 5: Solve for x
    x = 66,385,031,652.14/325,580.10
  6. Step 6: Final answer
    x = 203,897.69

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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.