Home / 102,621.74-141,620.40-57,298.19

Finding the Fourth Proportional to 102,621.74, 141,620.40 and 57,298.19

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Solution

The fourth proportional to 102,621.74, 141,620.40 and 57,298.19 is: 79,072.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,621.74 : 141,620.40 = 57,298.19 : x
  2. Step 2: Convert to fraction form
    102,621.74/141,620.40 = 57,298.19/x
  3. Step 3: Cross multiply
    102,621.74x = 141,620.40 × 57,298.19
  4. Step 4: Simplify right side
    102,621.74x = 8,114,591,878.97
  5. Step 5: Solve for x
    x = 8,114,591,878.97/102,621.74
  6. Step 6: Final answer
    x = 79,072.84

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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.