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Finding the Fourth Proportional to 158,697.30, 238,045.95 and 69,905.10

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Solution

The fourth proportional to 158,697.30, 238,045.95 and 69,905.10 is: 104,857.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,697.30 : 238,045.95 = 69,905.10 : x
  2. Step 2: Convert to fraction form
    158,697.30/238,045.95 = 69,905.10/x
  3. Step 3: Cross multiply
    158,697.30x = 238,045.95 × 69,905.10
  4. Step 4: Simplify right side
    158,697.30x = 16,640,625,939.35
  5. Step 5: Solve for x
    x = 16,640,625,939.35/158,697.30
  6. Step 6: Final answer
    x = 104,857.65

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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.