Home / 104,987.30-157,546.25-42,657.80

Finding the Fourth Proportional to 104,987.30, 157,546.25 and 42,657.80

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Solution

The fourth proportional to 104,987.30, 157,546.25 and 42,657.80 is: 64,013.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,987.30 : 157,546.25 = 42,657.80 : x
  2. Step 2: Convert to fraction form
    104,987.30/157,546.25 = 42,657.80/x
  3. Step 3: Cross multiply
    104,987.30x = 157,546.25 × 42,657.80
  4. Step 4: Simplify right side
    104,987.30x = 6,720,575,422.23
  5. Step 5: Solve for x
    x = 6,720,575,422.23/104,987.30
  6. Step 6: Final answer
    x = 64,013.23

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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.