Home / 111,688.31-167,532.12-45,127.65

Finding the Fourth Proportional to 111,688.31, 167,532.12 and 45,127.65

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Solution

The fourth proportional to 111,688.31, 167,532.12 and 45,127.65 is: 67,691.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,688.31 : 167,532.12 = 45,127.65 : x
  2. Step 2: Convert to fraction form
    111,688.31/167,532.12 = 45,127.65/x
  3. Step 3: Cross multiply
    111,688.31x = 167,532.12 × 45,127.65
  4. Step 4: Simplify right side
    111,688.31x = 7,560,330,875.12
  5. Step 5: Solve for x
    x = 7,560,330,875.12/111,688.31
  6. Step 6: Final answer
    x = 67,691.34

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1.5x scale

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.