Home / 102,159.57-140,900.33-66,361.11

Finding the Fourth Proportional to 102,159.57, 140,900.33 and 66,361.11

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Solution

The fourth proportional to 102,159.57, 140,900.33 and 66,361.11 is: 91,526.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,159.57 : 140,900.33 = 66,361.11 : x
  2. Step 2: Convert to fraction form
    102,159.57/140,900.33 = 66,361.11/x
  3. Step 3: Cross multiply
    102,159.57x = 140,900.33 × 66,361.11
  4. Step 4: Simplify right side
    102,159.57x = 9,350,301,966.36
  5. Step 5: Solve for x
    x = 9,350,301,966.36/102,159.57
  6. Step 6: Final answer
    x = 91,526.44

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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.