Home / 105,583.23-145,705.28-57,836.91

Finding the Fourth Proportional to 105,583.23, 145,705.28 and 57,836.91

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Solution

The fourth proportional to 105,583.23, 145,705.28 and 57,836.91 is: 79,815.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,583.23 : 145,705.28 = 57,836.91 : x
  2. Step 2: Convert to fraction form
    105,583.23/145,705.28 = 57,836.91/x
  3. Step 3: Cross multiply
    105,583.23x = 145,705.28 × 57,836.91
  4. Step 4: Simplify right side
    105,583.23x = 8,427,142,876.70
  5. Step 5: Solve for x
    x = 8,427,142,876.70/105,583.23
  6. Step 6: Final answer
    x = 79,815.16

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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.