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Finding the Fourth Proportional to 103,141.68, 154,514.88 and 69,804.24

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Solution

The fourth proportional to 103,141.68, 154,514.88 and 69,804.24 is: 104,572.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,141.68 : 154,514.88 = 69,804.24 : x
  2. Step 2: Convert to fraction form
    103,141.68/154,514.88 = 69,804.24/x
  3. Step 3: Cross multiply
    103,141.68x = 154,514.88 × 69,804.24
  4. Step 4: Simplify right side
    103,141.68x = 10,785,793,767.09
  5. Step 5: Solve for x
    x = 10,785,793,767.09/103,141.68
  6. Step 6: Final answer
    x = 104,572.60

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1.5x scale

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.