Home / 93,857.16-140,080.80-81,150.84

Finding the Fourth Proportional to 93,857.16, 140,080.80 and 81,150.84

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Solution

The fourth proportional to 93,857.16, 140,080.80 and 81,150.84 is: 121,116.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,857.16 : 140,080.80 = 81,150.84 : x
  2. Step 2: Convert to fraction form
    93,857.16/140,080.80 = 81,150.84/x
  3. Step 3: Cross multiply
    93,857.16x = 140,080.80 × 81,150.84
  4. Step 4: Simplify right side
    93,857.16x = 11,367,674,587.87
  5. Step 5: Solve for x
    x = 11,367,674,587.87/93,857.16
  6. Step 6: Final answer
    x = 121,116.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.