Home / 102,785.30-141,846.85-57,465.20

Finding the Fourth Proportional to 102,785.30, 141,846.85 and 57,465.20

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Solution

The fourth proportional to 102,785.30, 141,846.85 and 57,465.20 is: 79,303.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,785.30 : 141,846.85 = 57,465.20 : x
  2. Step 2: Convert to fraction form
    102,785.30/141,846.85 = 57,465.20/x
  3. Step 3: Cross multiply
    102,785.30x = 141,846.85 × 57,465.20
  4. Step 4: Simplify right side
    102,785.30x = 8,151,256,909.94
  5. Step 5: Solve for x
    x = 8,151,256,909.94/102,785.30
  6. Step 6: Final answer
    x = 79,303.72

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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.