Home / 120,690.70-181,036.05-31,953.18

Finding the Fourth Proportional to 120,690.70, 181,036.05 and 31,953.18

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Solution

The fourth proportional to 120,690.70, 181,036.05 and 31,953.18 is: 47,929.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,690.70 : 181,036.05 = 31,953.18 : x
  2. Step 2: Convert to fraction form
    120,690.70/181,036.05 = 31,953.18/x
  3. Step 3: Cross multiply
    120,690.70x = 181,036.05 × 31,953.18
  4. Step 4: Simplify right side
    120,690.70x = 5,784,676,586.96
  5. Step 5: Solve for x
    x = 5,784,676,586.96/120,690.70
  6. Step 6: Final answer
    x = 47,929.76

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1.5x scale

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.