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Finding the Fourth Proportional to 109,153.68, 163,730.52 and 39,028.74

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Solution

The fourth proportional to 109,153.68, 163,730.52 and 39,028.74 is: 58,543.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,153.68 : 163,730.52 = 39,028.74 : x
  2. Step 2: Convert to fraction form
    109,153.68/163,730.52 = 39,028.74/x
  3. Step 3: Cross multiply
    109,153.68x = 163,730.52 × 39,028.74
  4. Step 4: Simplify right side
    109,153.68x = 6,390,195,895.14
  5. Step 5: Solve for x
    x = 6,390,195,895.14/109,153.68
  6. Step 6: Final answer
    x = 58,543.11

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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.