Home / 99,116.78-136,781.29-53,794.76

Finding the Fourth Proportional to 99,116.78, 136,781.29 and 53,794.76

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Solution

The fourth proportional to 99,116.78, 136,781.29 and 53,794.76 is: 74,236.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,116.78 : 136,781.29 = 53,794.76 : x
  2. Step 2: Convert to fraction form
    99,116.78/136,781.29 = 53,794.76/x
  3. Step 3: Cross multiply
    99,116.78x = 136,781.29 × 53,794.76
  4. Step 4: Simplify right side
    99,116.78x = 7,358,116,652.66
  5. Step 5: Solve for x
    x = 7,358,116,652.66/99,116.78
  6. Step 6: Final answer
    x = 74,236.84

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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.