Home / 185,325.72-255,749.90-100,442.76

Finding the Fourth Proportional to 185,325.72, 255,749.90 and 100,442.76

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Solution

The fourth proportional to 185,325.72, 255,749.90 and 100,442.76 is: 138,611.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,325.72 : 255,749.90 = 100,442.76 : x
  2. Step 2: Convert to fraction form
    185,325.72/255,749.90 = 100,442.76/x
  3. Step 3: Cross multiply
    185,325.72x = 255,749.90 × 100,442.76
  4. Step 4: Simplify right side
    185,325.72x = 25,688,225,825.72
  5. Step 5: Solve for x
    x = 25,688,225,825.72/185,325.72
  6. Step 6: Final answer
    x = 138,611.23

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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.