Home / 116,931.16-161,326.74-71,561.83

Finding the Fourth Proportional to 116,931.16, 161,326.74 and 71,561.83

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Solution

The fourth proportional to 116,931.16, 161,326.74 and 71,561.83 is: 98,731.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,931.16 : 161,326.74 = 71,561.83 : x
  2. Step 2: Convert to fraction form
    116,931.16/161,326.74 = 71,561.83/x
  3. Step 3: Cross multiply
    116,931.16x = 161,326.74 × 71,561.83
  4. Step 4: Simplify right side
    116,931.16x = 11,544,836,742.33
  5. Step 5: Solve for x
    x = 11,544,836,742.33/116,931.16
  6. Step 6: Final answer
    x = 98,731.91

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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.