Home / 145,237.81-200,424.18-80,705.38

Finding the Fourth Proportional to 145,237.81, 200,424.18 and 80,705.38

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Solution

The fourth proportional to 145,237.81, 200,424.18 and 80,705.38 is: 111,371.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,237.81 : 200,424.18 = 80,705.38 : x
  2. Step 2: Convert to fraction form
    145,237.81/200,424.18 = 80,705.38/x
  3. Step 3: Cross multiply
    145,237.81x = 200,424.18 × 80,705.38
  4. Step 4: Simplify right side
    145,237.81x = 16,175,309,608.09
  5. Step 5: Solve for x
    x = 16,175,309,608.09/145,237.81
  6. Step 6: Final answer
    x = 111,371.20

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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.