Home / 101,378.56-152,089.58-30,306.77

Finding the Fourth Proportional to 101,378.56, 152,089.58 and 30,306.77

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Solution

The fourth proportional to 101,378.56, 152,089.58 and 30,306.77 is: 45,466.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,378.56 : 152,089.58 = 30,306.77 : x
  2. Step 2: Convert to fraction form
    101,378.56/152,089.58 = 30,306.77/x
  3. Step 3: Cross multiply
    101,378.56x = 152,089.58 × 30,306.77
  4. Step 4: Simplify right side
    101,378.56x = 4,609,343,920.46
  5. Step 5: Solve for x
    x = 4,609,343,920.46/101,378.56
  6. Step 6: Final answer
    x = 45,466.65

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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.