Home / 116,799.12-161,178.12-69,080.40

Finding the Fourth Proportional to 116,799.12, 161,178.12 and 69,080.40

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Solution

The fourth proportional to 116,799.12, 161,178.12 and 69,080.40 is: 95,328.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,799.12 : 161,178.12 = 69,080.40 : x
  2. Step 2: Convert to fraction form
    116,799.12/161,178.12 = 69,080.40/x
  3. Step 3: Cross multiply
    116,799.12x = 161,178.12 × 69,080.40
  4. Step 4: Simplify right side
    116,799.12x = 11,134,249,000.85
  5. Step 5: Solve for x
    x = 11,134,249,000.85/116,799.12
  6. Step 6: Final answer
    x = 95,328.19

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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.