Home / 112,431.72-168,629.10-40,369.71

Finding the Fourth Proportional to 112,431.72, 168,629.10 and 40,369.71

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Solution

The fourth proportional to 112,431.72, 168,629.10 and 40,369.71 is: 60,547.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,431.72 : 168,629.10 = 40,369.71 : x
  2. Step 2: Convert to fraction form
    112,431.72/168,629.10 = 40,369.71/x
  3. Step 3: Cross multiply
    112,431.72x = 168,629.10 × 40,369.71
  4. Step 4: Simplify right side
    112,431.72x = 6,807,507,864.56
  5. Step 5: Solve for x
    x = 6,807,507,864.56/112,431.72
  6. Step 6: Final answer
    x = 60,547.93

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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.