Home / 113,966.64-157,268.16-66,212.28

Finding the Fourth Proportional to 113,966.64, 157,268.16 and 66,212.28

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Solution

The fourth proportional to 113,966.64, 157,268.16 and 66,212.28 is: 91,369.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,966.64 : 157,268.16 = 66,212.28 : x
  2. Step 2: Convert to fraction form
    113,966.64/157,268.16 = 66,212.28/x
  3. Step 3: Cross multiply
    113,966.64x = 157,268.16 × 66,212.28
  4. Step 4: Simplify right side
    113,966.64x = 10,413,083,445.00
  5. Step 5: Solve for x
    x = 10,413,083,445.00/113,966.64
  6. Step 6: Final answer
    x = 91,369.57

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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.