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Finding the Fourth Proportional to 144,411.58, 216,525.09 and 69,382.45

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Solution

The fourth proportional to 144,411.58, 216,525.09 and 69,382.45 is: 104,029.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,411.58 : 216,525.09 = 69,382.45 : x
  2. Step 2: Convert to fraction form
    144,411.58/216,525.09 = 69,382.45/x
  3. Step 3: Cross multiply
    144,411.58x = 216,525.09 × 69,382.45
  4. Step 4: Simplify right side
    144,411.58x = 15,023,041,230.67
  5. Step 5: Solve for x
    x = 15,023,041,230.67/144,411.58
  6. Step 6: Final answer
    x = 104,029.34

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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.