Home / 113,458.80-170,131.20-66,089.52

Finding the Fourth Proportional to 113,458.80, 170,131.20 and 66,089.52

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Solution

The fourth proportional to 113,458.80, 170,131.20 and 66,089.52 is: 99,101.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,458.80 : 170,131.20 = 66,089.52 : x
  2. Step 2: Convert to fraction form
    113,458.80/170,131.20 = 66,089.52/x
  3. Step 3: Cross multiply
    113,458.80x = 170,131.20 × 66,089.52
  4. Step 4: Simplify right side
    113,458.80x = 11,243,889,345.02
  5. Step 5: Solve for x
    x = 11,243,889,345.02/113,458.80
  6. Step 6: Final answer
    x = 99,101.08

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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.