Home / 98,748.15-148,156.79-28,631.67

Finding the Fourth Proportional to 98,748.15, 148,156.79 and 28,631.67

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Solution

The fourth proportional to 98,748.15, 148,156.79 and 28,631.67 is: 42,957.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,748.15 : 148,156.79 = 28,631.67 : x
  2. Step 2: Convert to fraction form
    98,748.15/148,156.79 = 28,631.67/x
  3. Step 3: Cross multiply
    98,748.15x = 148,156.79 × 28,631.67
  4. Step 4: Simplify right side
    98,748.15x = 4,241,976,176.38
  5. Step 5: Solve for x
    x = 4,241,976,176.38/98,748.15
  6. Step 6: Final answer
    x = 42,957.53

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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.