Home / 185,320.78-255,740.82-103,648.18

Finding the Fourth Proportional to 185,320.78, 255,740.82 and 103,648.18

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Solution

The fourth proportional to 185,320.78, 255,740.82 and 103,648.18 is: 143,033.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,320.78 : 255,740.82 = 103,648.18 : x
  2. Step 2: Convert to fraction form
    185,320.78/255,740.82 = 103,648.18/x
  3. Step 3: Cross multiply
    185,320.78x = 255,740.82 × 103,648.18
  4. Step 4: Simplify right side
    185,320.78x = 26,507,070,544.71
  5. Step 5: Solve for x
    x = 26,507,070,544.71/185,320.78
  6. Step 6: Final answer
    x = 143,033.45

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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.