Home / 102,703.19-141,729.43-57,388.98

Finding the Fourth Proportional to 102,703.19, 141,729.43 and 57,388.98

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Solution

The fourth proportional to 102,703.19, 141,729.43 and 57,388.98 is: 79,196.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,703.19 : 141,729.43 = 57,388.98 : x
  2. Step 2: Convert to fraction form
    102,703.19/141,729.43 = 57,388.98/x
  3. Step 3: Cross multiply
    102,703.19x = 141,729.43 × 57,388.98
  4. Step 4: Simplify right side
    102,703.19x = 8,133,707,136.74
  5. Step 5: Solve for x
    x = 8,133,707,136.74/102,703.19
  6. Step 6: Final answer
    x = 79,196.25

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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.