Home / 167,139.80-230,639.18-91,688.32

Finding the Fourth Proportional to 167,139.80, 230,639.18 and 91,688.32

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Solution

The fourth proportional to 167,139.80, 230,639.18 and 91,688.32 is: 126,522.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,139.80 : 230,639.18 = 91,688.32 : x
  2. Step 2: Convert to fraction form
    167,139.80/230,639.18 = 91,688.32/x
  3. Step 3: Cross multiply
    167,139.80x = 230,639.18 × 91,688.32
  4. Step 4: Simplify right side
    167,139.80x = 21,146,918,940.38
  5. Step 5: Solve for x
    x = 21,146,918,940.38/167,139.80
  6. Step 6: Final answer
    x = 126,522.34

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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.