Home / 112,912.20-169,368.30-38,007.45

Finding the Fourth Proportional to 112,912.20, 169,368.30 and 38,007.45

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Solution

The fourth proportional to 112,912.20, 169,368.30 and 38,007.45 is: 57,011.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,912.20 : 169,368.30 = 38,007.45 : x
  2. Step 2: Convert to fraction form
    112,912.20/169,368.30 = 38,007.45/x
  3. Step 3: Cross multiply
    112,912.20x = 169,368.30 × 38,007.45
  4. Step 4: Simplify right side
    112,912.20x = 6,437,257,193.84
  5. Step 5: Solve for x
    x = 6,437,257,193.84/112,912.20
  6. Step 6: Final answer
    x = 57,011.18

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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.