Home / 181,386.72-250,312.56-100,812.96

Finding the Fourth Proportional to 181,386.72, 250,312.56 and 100,812.96

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Solution

The fourth proportional to 181,386.72, 250,312.56 and 100,812.96 is: 139,121.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,386.72 : 250,312.56 = 100,812.96 : x
  2. Step 2: Convert to fraction form
    181,386.72/250,312.56 = 100,812.96/x
  3. Step 3: Cross multiply
    181,386.72x = 250,312.56 × 100,812.96
  4. Step 4: Simplify right side
    181,386.72x = 25,234,750,098.78
  5. Step 5: Solve for x
    x = 25,234,750,098.78/181,386.72
  6. Step 6: Final answer
    x = 139,121.27

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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.