Home / 98,270.24-147,380.40-28,130.72

Finding the Fourth Proportional to 98,270.24, 147,380.40 and 28,130.72

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Solution

The fourth proportional to 98,270.24, 147,380.40 and 28,130.72 is: 42,188.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,270.24 : 147,380.40 = 28,130.72 : x
  2. Step 2: Convert to fraction form
    98,270.24/147,380.40 = 28,130.72/x
  3. Step 3: Cross multiply
    98,270.24x = 147,380.40 × 28,130.72
  4. Step 4: Simplify right side
    98,270.24x = 4,145,916,765.89
  5. Step 5: Solve for x
    x = 4,145,916,765.89/98,270.24
  6. Step 6: Final answer
    x = 42,188.93

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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.