Home / 145,196.70-200,381.40-80,673.72

Finding the Fourth Proportional to 145,196.70, 200,381.40 and 80,673.72

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Solution

The fourth proportional to 145,196.70, 200,381.40 and 80,673.72 is: 111,335.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,196.70 : 200,381.40 = 80,673.72 : x
  2. Step 2: Convert to fraction form
    145,196.70/200,381.40 = 80,673.72/x
  3. Step 3: Cross multiply
    145,196.70x = 200,381.40 × 80,673.72
  4. Step 4: Simplify right side
    145,196.70x = 16,165,512,956.81
  5. Step 5: Solve for x
    x = 16,165,512,956.81/145,196.70
  6. Step 6: Final answer
    x = 111,335.26

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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.