Home / 113,813.56-157,071.40-62,836.10

Finding the Fourth Proportional to 113,813.56, 157,071.40 and 62,836.10

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Solution

The fourth proportional to 113,813.56, 157,071.40 and 62,836.10 is: 86,718.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,813.56 : 157,071.40 = 62,836.10 : x
  2. Step 2: Convert to fraction form
    113,813.56/157,071.40 = 62,836.10/x
  3. Step 3: Cross multiply
    113,813.56x = 157,071.40 × 62,836.10
  4. Step 4: Simplify right side
    113,813.56x = 9,869,755,081.09
  5. Step 5: Solve for x
    x = 9,869,755,081.09/113,813.56
  6. Step 6: Final answer
    x = 86,718.63

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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.