Home / 102,530.56-141,488.22-57,206.20

Finding the Fourth Proportional to 102,530.56, 141,488.22 and 57,206.20

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Solution

The fourth proportional to 102,530.56, 141,488.22 and 57,206.20 is: 78,942.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,530.56 : 141,488.22 = 57,206.20 : x
  2. Step 2: Convert to fraction form
    102,530.56/141,488.22 = 57,206.20/x
  3. Step 3: Cross multiply
    102,530.56x = 141,488.22 × 57,206.20
  4. Step 4: Simplify right side
    102,530.56x = 8,094,003,410.96
  5. Step 5: Solve for x
    x = 8,094,003,410.96/102,530.56
  6. Step 6: Final answer
    x = 78,942.35

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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.