Home / 185,225.85-255,611.63-100,342.89

Finding the Fourth Proportional to 185,225.85, 255,611.63 and 100,342.89

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Solution

The fourth proportional to 185,225.85, 255,611.63 and 100,342.89 is: 138,473.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,225.85 : 255,611.63 = 100,342.89 : x
  2. Step 2: Convert to fraction form
    185,225.85/255,611.63 = 100,342.89/x
  3. Step 3: Cross multiply
    185,225.85x = 255,611.63 × 100,342.89
  4. Step 4: Simplify right side
    185,225.85x = 25,648,809,170.10
  5. Step 5: Solve for x
    x = 25,648,809,170.10/185,225.85
  6. Step 6: Final answer
    x = 138,473.16

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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.