Home / 89,120.88-133,746.66-71,799.84

Finding the Fourth Proportional to 89,120.88, 133,746.66 and 71,799.84

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Solution

The fourth proportional to 89,120.88, 133,746.66 and 71,799.84 is: 107,752.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,120.88 : 133,746.66 = 71,799.84 : x
  2. Step 2: Convert to fraction form
    89,120.88/133,746.66 = 71,799.84/x
  3. Step 3: Cross multiply
    89,120.88x = 133,746.66 × 71,799.84
  4. Step 4: Simplify right side
    89,120.88x = 9,602,988,788.53
  5. Step 5: Solve for x
    x = 9,602,988,788.53/89,120.88
  6. Step 6: Final answer
    x = 107,752.40

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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.