Home / 102,963.08-154,428.76-28,089.32

Finding the Fourth Proportional to 102,963.08, 154,428.76 and 28,089.32

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Solution

The fourth proportional to 102,963.08, 154,428.76 and 28,089.32 is: 42,129.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,963.08 : 154,428.76 = 28,089.32 : x
  2. Step 2: Convert to fraction form
    102,963.08/154,428.76 = 28,089.32/x
  3. Step 3: Cross multiply
    102,963.08x = 154,428.76 × 28,089.32
  4. Step 4: Simplify right side
    102,963.08x = 4,337,798,119.81
  5. Step 5: Solve for x
    x = 4,337,798,119.81/102,963.08
  6. Step 6: Final answer
    x = 42,129.65

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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.