Home / 157,738.12-217,679.10-101,149.72

Finding the Fourth Proportional to 157,738.12, 217,679.10 and 101,149.72

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Solution

The fourth proportional to 157,738.12, 217,679.10 and 101,149.72 is: 139,586.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,738.12 : 217,679.10 = 101,149.72 : x
  2. Step 2: Convert to fraction form
    157,738.12/217,679.10 = 101,149.72/x
  3. Step 3: Cross multiply
    157,738.12x = 217,679.10 × 101,149.72
  4. Step 4: Simplify right side
    157,738.12x = 22,018,180,014.85
  5. Step 5: Solve for x
    x = 22,018,180,014.85/157,738.12
  6. Step 6: Final answer
    x = 139,586.93

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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.