Home / 185,195.37-255,569.67-100,312.47

Finding the Fourth Proportional to 185,195.37, 255,569.67 and 100,312.47

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Solution

The fourth proportional to 185,195.37, 255,569.67 and 100,312.47 is: 138,431.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,195.37 : 255,569.67 = 100,312.47 : x
  2. Step 2: Convert to fraction form
    185,195.37/255,569.67 = 100,312.47/x
  3. Step 3: Cross multiply
    185,195.37x = 255,569.67 × 100,312.47
  4. Step 4: Simplify right side
    185,195.37x = 25,636,824,854.78
  5. Step 5: Solve for x
    x = 25,636,824,854.78/185,195.37
  6. Step 6: Final answer
    x = 138,431.24

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1.5x scale

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.