Home / 102,570.23-141,435.33-66,693.71

Finding the Fourth Proportional to 102,570.23, 141,435.33 and 66,693.71

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Solution

The fourth proportional to 102,570.23, 141,435.33 and 66,693.71 is: 91,964.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,570.23 : 141,435.33 = 66,693.71 : x
  2. Step 2: Convert to fraction form
    102,570.23/141,435.33 = 66,693.71/x
  3. Step 3: Cross multiply
    102,570.23x = 141,435.33 × 66,693.71
  4. Step 4: Simplify right side
    102,570.23x = 9,432,846,966.14
  5. Step 5: Solve for x
    x = 9,432,846,966.14/102,570.23
  6. Step 6: Final answer
    x = 91,964.76

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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.