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Finding the Fourth Proportional to 113,697, 170,663.79 and 83,745.06

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Solution

The fourth proportional to 113,697, 170,663.79 and 83,745.06 is: 125,704.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,697 : 170,663.79 = 83,745.06 : x
  2. Step 2: Convert to fraction form
    113,697/170,663.79 = 83,745.06/x
  3. Step 3: Cross multiply
    113,697x = 170,663.79 × 83,745.06
  4. Step 4: Simplify right side
    113,697x = 14,292,249,333.38
  5. Step 5: Solve for x
    x = 14,292,249,333.38/113,697
  6. Step 6: Final answer
    x = 125,704.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.