Home / 112,256.40-154,933.08-107,211.72

Finding the Fourth Proportional to 112,256.40, 154,933.08 and 107,211.72

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Solution

The fourth proportional to 112,256.40, 154,933.08 and 107,211.72 is: 147,970.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,256.40 : 154,933.08 = 107,211.72 : x
  2. Step 2: Convert to fraction form
    112,256.40/154,933.08 = 107,211.72/x
  3. Step 3: Cross multiply
    112,256.40x = 154,933.08 × 107,211.72
  4. Step 4: Simplify right side
    112,256.40x = 16,610,641,991.70
  5. Step 5: Solve for x
    x = 16,610,641,991.70/112,256.40
  6. Step 6: Final answer
    x = 147,970.56

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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.