Home / 185,005.17-255,307.13-100,122.23

Finding the Fourth Proportional to 185,005.17, 255,307.13 and 100,122.23

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Solution

The fourth proportional to 185,005.17, 255,307.13 and 100,122.23 is: 138,168.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,005.17 : 255,307.13 = 100,122.23 : x
  2. Step 2: Convert to fraction form
    185,005.17/255,307.13 = 100,122.23/x
  3. Step 3: Cross multiply
    185,005.17x = 255,307.13 × 100,122.23
  4. Step 4: Simplify right side
    185,005.17x = 25,561,919,190.50
  5. Step 5: Solve for x
    x = 25,561,919,190.50/185,005.17
  6. Step 6: Final answer
    x = 138,168.67

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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.