Home / 98,428.20-147,637.14-28,304.76

Finding the Fourth Proportional to 98,428.20, 147,637.14 and 28,304.76

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Solution

The fourth proportional to 98,428.20, 147,637.14 and 28,304.76 is: 42,455.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,428.20 : 147,637.14 = 28,304.76 : x
  2. Step 2: Convert to fraction form
    98,428.20/147,637.14 = 28,304.76/x
  3. Step 3: Cross multiply
    98,428.20x = 147,637.14 × 28,304.76
  4. Step 4: Simplify right side
    98,428.20x = 4,178,833,814.79
  5. Step 5: Solve for x
    x = 4,178,833,814.79/98,428.20
  6. Step 6: Final answer
    x = 42,455.66

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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.