Home / 161,693.11-242,427.81-71,686.67

Finding the Fourth Proportional to 161,693.11, 242,427.81 and 71,686.67

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Solution

The fourth proportional to 161,693.11, 242,427.81 and 71,686.67 is: 107,480.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,693.11 : 242,427.81 = 71,686.67 : x
  2. Step 2: Convert to fraction form
    161,693.11/242,427.81 = 71,686.67/x
  3. Step 3: Cross multiply
    161,693.11x = 242,427.81 × 71,686.67
  4. Step 4: Simplify right side
    161,693.11x = 17,378,842,633.02
  5. Step 5: Solve for x
    x = 17,378,842,633.02/161,693.11
  6. Step 6: Final answer
    x = 107,480.41

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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.