Home / 185,272.65-255,677.15-100,389.69

Finding the Fourth Proportional to 185,272.65, 255,677.15 and 100,389.69

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Solution

The fourth proportional to 185,272.65, 255,677.15 and 100,389.69 is: 138,538.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,272.65 : 255,677.15 = 100,389.69 : x
  2. Step 2: Convert to fraction form
    185,272.65/255,677.15 = 100,389.69/x
  3. Step 3: Cross multiply
    185,272.65x = 255,677.15 × 100,389.69
  4. Step 4: Simplify right side
    185,272.65x = 25,667,349,828.58
  5. Step 5: Solve for x
    x = 25,667,349,828.58/185,272.65
  6. Step 6: Final answer
    x = 138,538.26

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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.