Home / 145,031.10-200,154.96-80,506.41

Finding the Fourth Proportional to 145,031.10, 200,154.96 and 80,506.41

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Solution

The fourth proportional to 145,031.10, 200,154.96 and 80,506.41 is: 111,105.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,031.10 : 200,154.96 = 80,506.41 : x
  2. Step 2: Convert to fraction form
    145,031.10/200,154.96 = 80,506.41/x
  3. Step 3: Cross multiply
    145,031.10x = 200,154.96 × 80,506.41
  4. Step 4: Simplify right side
    145,031.10x = 16,113,757,273.29
  5. Step 5: Solve for x
    x = 16,113,757,273.29/145,031.10
  6. Step 6: Final answer
    x = 111,105.53

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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.