Home / 113,351.38-156,421.67-61,666.85

Finding the Fourth Proportional to 113,351.38, 156,421.67 and 61,666.85

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Solution

The fourth proportional to 113,351.38, 156,421.67 and 61,666.85 is: 85,098.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,351.38 : 156,421.67 = 61,666.85 : x
  2. Step 2: Convert to fraction form
    113,351.38/156,421.67 = 61,666.85/x
  3. Step 3: Cross multiply
    113,351.38x = 156,421.67 × 61,666.85
  4. Step 4: Simplify right side
    113,351.38x = 9,646,031,743.36
  5. Step 5: Solve for x
    x = 9,646,031,743.36/113,351.38
  6. Step 6: Final answer
    x = 85,098.50

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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.