Home / 185,225.60-255,611.28-100,342.64

Finding the Fourth Proportional to 185,225.60, 255,611.28 and 100,342.64

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Solution

The fourth proportional to 185,225.60, 255,611.28 and 100,342.64 is: 138,472.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,225.60 : 255,611.28 = 100,342.64 : x
  2. Step 2: Convert to fraction form
    185,225.60/255,611.28 = 100,342.64/x
  3. Step 3: Cross multiply
    185,225.60x = 255,611.28 × 100,342.64
  4. Step 4: Simplify right side
    185,225.60x = 25,648,710,648.98
  5. Step 5: Solve for x
    x = 25,648,710,648.98/185,225.60
  6. Step 6: Final answer
    x = 138,472.82

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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.