Home / 107,266.56-160,908-28,378.72

Finding the Fourth Proportional to 107,266.56, 160,908 and 28,378.72

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Solution

The fourth proportional to 107,266.56, 160,908 and 28,378.72 is: 42,570.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,266.56 : 160,908 = 28,378.72 : x
  2. Step 2: Convert to fraction form
    107,266.56/160,908 = 28,378.72/x
  3. Step 3: Cross multiply
    107,266.56x = 160,908 × 28,378.72
  4. Step 4: Simplify right side
    107,266.56x = 4,566,363,077.76
  5. Step 5: Solve for x
    x = 4,566,363,077.76/107,266.56
  6. Step 6: Final answer
    x = 42,570.24

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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.