Home / 98,680.59-136,194.58-64,787.39

Finding the Fourth Proportional to 98,680.59, 136,194.58 and 64,787.39

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Solution

The fourth proportional to 98,680.59, 136,194.58 and 64,787.39 is: 89,416.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,680.59 : 136,194.58 = 64,787.39 : x
  2. Step 2: Convert to fraction form
    98,680.59/136,194.58 = 64,787.39/x
  3. Step 3: Cross multiply
    98,680.59x = 136,194.58 × 64,787.39
  4. Step 4: Simplify right side
    98,680.59x = 8,823,690,916.66
  5. Step 5: Solve for x
    x = 8,823,690,916.66/98,680.59
  6. Step 6: Final answer
    x = 89,416.68

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1.5x scale

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.