Home / 254,856.03-351,708.98-140,128.74

Finding the Fourth Proportional to 254,856.03, 351,708.98 and 140,128.74

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Solution

The fourth proportional to 254,856.03, 351,708.98 and 140,128.74 is: 193,381.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,856.03 : 351,708.98 = 140,128.74 : x
  2. Step 2: Convert to fraction form
    254,856.03/351,708.98 = 140,128.74/x
  3. Step 3: Cross multiply
    254,856.03x = 351,708.98 × 140,128.74
  4. Step 4: Simplify right side
    254,856.03x = 49,284,535,513.44
  5. Step 5: Solve for x
    x = 49,284,535,513.44/254,856.03
  6. Step 6: Final answer
    x = 193,381.87

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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.