Home / 113,868.72-157,138.80-63,567.68

Finding the Fourth Proportional to 113,868.72, 157,138.80 and 63,567.68

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Solution

The fourth proportional to 113,868.72, 157,138.80 and 63,567.68 is: 87,723.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,868.72 : 157,138.80 = 63,567.68 : x
  2. Step 2: Convert to fraction form
    113,868.72/157,138.80 = 63,567.68/x
  3. Step 3: Cross multiply
    113,868.72x = 157,138.80 × 63,567.68
  4. Step 4: Simplify right side
    113,868.72x = 9,988,948,953.98
  5. Step 5: Solve for x
    x = 9,988,948,953.98/113,868.72
  6. Step 6: Final answer
    x = 87,723.38

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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.