Home / 131,251.83-181,126.58-74,666.31

Finding the Fourth Proportional to 131,251.83, 181,126.58 and 74,666.31

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Solution

The fourth proportional to 131,251.83, 181,126.58 and 74,666.31 is: 103,038.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,251.83 : 181,126.58 = 74,666.31 : x
  2. Step 2: Convert to fraction form
    131,251.83/181,126.58 = 74,666.31/x
  3. Step 3: Cross multiply
    131,251.83x = 181,126.58 × 74,666.31
  4. Step 4: Simplify right side
    131,251.83x = 13,524,052,998.19
  5. Step 5: Solve for x
    x = 13,524,052,998.19/131,251.83
  6. Step 6: Final answer
    x = 103,038.97

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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.