Home / 111,681.14-154,115.75-63,938.93

Finding the Fourth Proportional to 111,681.14, 154,115.75 and 63,938.93

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Solution

The fourth proportional to 111,681.14, 154,115.75 and 63,938.93 is: 88,233.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,681.14 : 154,115.75 = 63,938.93 : x
  2. Step 2: Convert to fraction form
    111,681.14/154,115.75 = 63,938.93/x
  3. Step 3: Cross multiply
    111,681.14x = 154,115.75 × 63,938.93
  4. Step 4: Simplify right side
    111,681.14x = 9,853,995,831.45
  5. Step 5: Solve for x
    x = 9,853,995,831.45/111,681.14
  6. Step 6: Final answer
    x = 88,233.30

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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.