Home / 102,190.80-141,036.36-57,478.48

Finding the Fourth Proportional to 102,190.80, 141,036.36 and 57,478.48

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Solution

The fourth proportional to 102,190.80, 141,036.36 and 57,478.48 is: 79,327.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,190.80 : 141,036.36 = 57,478.48 : x
  2. Step 2: Convert to fraction form
    102,190.80/141,036.36 = 57,478.48/x
  3. Step 3: Cross multiply
    102,190.80x = 141,036.36 × 57,478.48
  4. Step 4: Simplify right side
    102,190.80x = 8,106,555,597.53
  5. Step 5: Solve for x
    x = 8,106,555,597.53/102,190.80
  6. Step 6: Final answer
    x = 79,327.65

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1.5x scale

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.