Home / 185,013.49-255,319.37-100,130.53

Finding the Fourth Proportional to 185,013.49, 255,319.37 and 100,130.53

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Solution

The fourth proportional to 185,013.49, 255,319.37 and 100,130.53 is: 138,180.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,013.49 : 255,319.37 = 100,130.53 : x
  2. Step 2: Convert to fraction form
    185,013.49/255,319.37 = 100,130.53/x
  3. Step 3: Cross multiply
    185,013.49x = 255,319.37 × 100,130.53
  4. Step 4: Simplify right side
    185,013.49x = 25,565,263,336.71
  5. Step 5: Solve for x
    x = 25,565,263,336.71/185,013.49
  6. Step 6: Final answer
    x = 138,180.54

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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.