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Finding the Fourth Proportional to 144,173.66, 216,299.84 and 69,356.39

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Solution

The fourth proportional to 144,173.66, 216,299.84 and 69,356.39 is: 104,053.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,173.66 : 216,299.84 = 69,356.39 : x
  2. Step 2: Convert to fraction form
    144,173.66/216,299.84 = 69,356.39/x
  3. Step 3: Cross multiply
    144,173.66x = 216,299.84 × 69,356.39
  4. Step 4: Simplify right side
    144,173.66x = 15,001,774,631.70
  5. Step 5: Solve for x
    x = 15,001,774,631.70/144,173.66
  6. Step 6: Final answer
    x = 104,053.51

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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.