Home / 144,498.21-216,550.35-69,612.90

Finding the Fourth Proportional to 144,498.21, 216,550.35 and 69,612.90

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Solution

The fourth proportional to 144,498.21, 216,550.35 and 69,612.90 is: 104,324.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,498.21 : 216,550.35 = 69,612.90 : x
  2. Step 2: Convert to fraction form
    144,498.21/216,550.35 = 69,612.90/x
  3. Step 3: Cross multiply
    144,498.21x = 216,550.35 × 69,612.90
  4. Step 4: Simplify right side
    144,498.21x = 15,074,697,859.52
  5. Step 5: Solve for x
    x = 15,074,697,859.52/144,498.21
  6. Step 6: Final answer
    x = 104,324.46

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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.