Home / 185,130.55-255,479.71-100,247.61

Finding the Fourth Proportional to 185,130.55, 255,479.71 and 100,247.61

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Solution

The fourth proportional to 185,130.55, 255,479.71 and 100,247.61 is: 138,341.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,130.55 : 255,479.71 = 100,247.61 : x
  2. Step 2: Convert to fraction form
    185,130.55/255,479.71 = 100,247.61/x
  3. Step 3: Cross multiply
    185,130.55x = 255,479.71 × 100,247.61
  4. Step 4: Simplify right side
    185,130.55x = 25,611,230,330.99
  5. Step 5: Solve for x
    x = 25,611,230,330.99/185,130.55
  6. Step 6: Final answer
    x = 138,341.46

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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.