Home / 109,746.84-151,449.54-64,416.78

Finding the Fourth Proportional to 109,746.84, 151,449.54 and 64,416.78

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Solution

The fourth proportional to 109,746.84, 151,449.54 and 64,416.78 is: 88,894.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,746.84 : 151,449.54 = 64,416.78 : x
  2. Step 2: Convert to fraction form
    109,746.84/151,449.54 = 64,416.78/x
  3. Step 3: Cross multiply
    109,746.84x = 151,449.54 × 64,416.78
  4. Step 4: Simplify right side
    109,746.84x = 9,755,891,699.28
  5. Step 5: Solve for x
    x = 9,755,891,699.28/109,746.84
  6. Step 6: Final answer
    x = 88,894.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.