Home / 185,271.65-255,675.77-100,388.69

Finding the Fourth Proportional to 185,271.65, 255,675.77 and 100,388.69

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Solution

The fourth proportional to 185,271.65, 255,675.77 and 100,388.69 is: 138,536.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,271.65 : 255,675.77 = 100,388.69 : x
  2. Step 2: Convert to fraction form
    185,271.65/255,675.77 = 100,388.69/x
  3. Step 3: Cross multiply
    185,271.65x = 255,675.77 × 100,388.69
  4. Step 4: Simplify right side
    185,271.65x = 25,666,955,615.04
  5. Step 5: Solve for x
    x = 25,666,955,615.04/185,271.65
  6. Step 6: Final answer
    x = 138,536.88

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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.