Home / 102,357.66-141,263.96-57,043.02

Finding the Fourth Proportional to 102,357.66, 141,263.96 and 57,043.02

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Solution

The fourth proportional to 102,357.66, 141,263.96 and 57,043.02 is: 78,725.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,357.66 : 141,263.96 = 57,043.02 : x
  2. Step 2: Convert to fraction form
    102,357.66/141,263.96 = 57,043.02/x
  3. Step 3: Cross multiply
    102,357.66x = 141,263.96 × 57,043.02
  4. Step 4: Simplify right side
    102,357.66x = 8,058,122,895.56
  5. Step 5: Solve for x
    x = 8,058,122,895.56/102,357.66
  6. Step 6: Final answer
    x = 78,725.16

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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.