Home / 111,666.90-154,113.64-63,935.58

Finding the Fourth Proportional to 111,666.90, 154,113.64 and 63,935.58

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Solution

The fourth proportional to 111,666.90, 154,113.64 and 63,935.58 is: 88,238.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,666.90 : 154,113.64 = 63,935.58 : x
  2. Step 2: Convert to fraction form
    111,666.90/154,113.64 = 63,935.58/x
  3. Step 3: Cross multiply
    111,666.90x = 154,113.64 × 63,935.58
  4. Step 4: Simplify right side
    111,666.90x = 9,853,344,959.31
  5. Step 5: Solve for x
    x = 9,853,344,959.31/111,666.90
  6. Step 6: Final answer
    x = 88,238.73

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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.