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Finding the Fourth Proportional to 181,088.70, 249,900.36 and 100,516.92

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Solution

The fourth proportional to 181,088.70, 249,900.36 and 100,516.92 is: 138,712.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,088.70 : 249,900.36 = 100,516.92 : x
  2. Step 2: Convert to fraction form
    181,088.70/249,900.36 = 100,516.92/x
  3. Step 3: Cross multiply
    181,088.70x = 249,900.36 × 100,516.92
  4. Step 4: Simplify right side
    181,088.70x = 25,119,214,494.09
  5. Step 5: Solve for x
    x = 25,119,214,494.09/181,088.70
  6. Step 6: Final answer
    x = 138,712.21

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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.