Home / 252,987.58-349,130.10-138,272.62

Finding the Fourth Proportional to 252,987.58, 349,130.10 and 138,272.62

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Solution

The fourth proportional to 252,987.58, 349,130.10 and 138,272.62 is: 190,820.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,987.58 : 349,130.10 = 138,272.62 : x
  2. Step 2: Convert to fraction form
    252,987.58/349,130.10 = 138,272.62/x
  3. Step 3: Cross multiply
    252,987.58x = 349,130.10 × 138,272.62
  4. Step 4: Simplify right side
    252,987.58x = 48,275,133,647.86
  5. Step 5: Solve for x
    x = 48,275,133,647.86/252,987.58
  6. Step 6: Final answer
    x = 190,820.17

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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.