Home / 145,237.56-200,423.83-80,705.13

Finding the Fourth Proportional to 145,237.56, 200,423.83 and 80,705.13

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Solution

The fourth proportional to 145,237.56, 200,423.83 and 80,705.13 is: 111,370.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,237.56 : 200,423.83 = 80,705.13 : x
  2. Step 2: Convert to fraction form
    145,237.56/200,423.83 = 80,705.13/x
  3. Step 3: Cross multiply
    145,237.56x = 200,423.83 × 80,705.13
  4. Step 4: Simplify right side
    145,237.56x = 16,175,231,255.25
  5. Step 5: Solve for x
    x = 16,175,231,255.25/145,237.56
  6. Step 6: Final answer
    x = 111,370.86

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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.