Home / 102,530.16-141,491.64-57,818.16

Finding the Fourth Proportional to 102,530.16, 141,491.64 and 57,818.16

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Solution

The fourth proportional to 102,530.16, 141,491.64 and 57,818.16 is: 79,789.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,530.16 : 141,491.64 = 57,818.16 : x
  2. Step 2: Convert to fraction form
    102,530.16/141,491.64 = 57,818.16/x
  3. Step 3: Cross multiply
    102,530.16x = 141,491.64 × 57,818.16
  4. Step 4: Simplify right side
    102,530.16x = 8,180,786,280.18
  5. Step 5: Solve for x
    x = 8,180,786,280.18/102,530.16
  6. Step 6: Final answer
    x = 79,789.07

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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.