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Finding the Fourth Proportional to 110,852.66, 152,931.36 and 81,850.54

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Solution

The fourth proportional to 110,852.66, 152,931.36 and 81,850.54 is: 112,920.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,852.66 : 152,931.36 = 81,850.54 : x
  2. Step 2: Convert to fraction form
    110,852.66/152,931.36 = 81,850.54/x
  3. Step 3: Cross multiply
    110,852.66x = 152,931.36 × 81,850.54
  4. Step 4: Simplify right side
    110,852.66x = 12,517,514,398.93
  5. Step 5: Solve for x
    x = 12,517,514,398.93/110,852.66
  6. Step 6: Final answer
    x = 112,920.29

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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.