Home / 155,386.26-214,449.69-90,875.24

Finding the Fourth Proportional to 155,386.26, 214,449.69 and 90,875.24

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Solution

The fourth proportional to 155,386.26, 214,449.69 and 90,875.24 is: 125,417.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,386.26 : 214,449.69 = 90,875.24 : x
  2. Step 2: Convert to fraction form
    155,386.26/214,449.69 = 90,875.24/x
  3. Step 3: Cross multiply
    155,386.26x = 214,449.69 × 90,875.24
  4. Step 4: Simplify right side
    155,386.26x = 19,488,165,974.43
  5. Step 5: Solve for x
    x = 19,488,165,974.43/155,386.26
  6. Step 6: Final answer
    x = 125,417.56

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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.