Home / 120,971.96-181,437.40-36,711.80

Finding the Fourth Proportional to 120,971.96, 181,437.40 and 36,711.80

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Solution

The fourth proportional to 120,971.96, 181,437.40 and 36,711.80 is: 55,061.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,971.96 : 181,437.40 = 36,711.80 : x
  2. Step 2: Convert to fraction form
    120,971.96/181,437.40 = 36,711.80/x
  3. Step 3: Cross multiply
    120,971.96x = 181,437.40 × 36,711.80
  4. Step 4: Simplify right side
    120,971.96x = 6,660,893,541.32
  5. Step 5: Solve for x
    x = 6,660,893,541.32/120,971.96
  6. Step 6: Final answer
    x = 55,061.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.