Home / 113,795.40-170,693.10-113,139.30

Finding the Fourth Proportional to 113,795.40, 170,693.10 and 113,139.30

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Solution

The fourth proportional to 113,795.40, 170,693.10 and 113,139.30 is: 169,708.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,795.40 : 170,693.10 = 113,139.30 : x
  2. Step 2: Convert to fraction form
    113,795.40/170,693.10 = 113,139.30/x
  3. Step 3: Cross multiply
    113,795.40x = 170,693.10 × 113,139.30
  4. Step 4: Simplify right side
    113,795.40x = 19,312,097,848.83
  5. Step 5: Solve for x
    x = 19,312,097,848.83/113,795.40
  6. Step 6: Final answer
    x = 169,708.95

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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.