Home / 102,618.09-141,615.95-57,295.35

Finding the Fourth Proportional to 102,618.09, 141,615.95 and 57,295.35

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Solution

The fourth proportional to 102,618.09, 141,615.95 and 57,295.35 is: 79,069.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,618.09 : 141,615.95 = 57,295.35 : x
  2. Step 2: Convert to fraction form
    102,618.09/141,615.95 = 57,295.35/x
  3. Step 3: Cross multiply
    102,618.09x = 141,615.95 × 57,295.35
  4. Step 4: Simplify right side
    102,618.09x = 8,113,935,134.36
  5. Step 5: Solve for x
    x = 8,113,935,134.36/102,618.09
  6. Step 6: Final answer
    x = 79,069.25

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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.