Home / 119,820.24-165,278.64-76,785.24

Finding the Fourth Proportional to 119,820.24, 165,278.64 and 76,785.24

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Solution

The fourth proportional to 119,820.24, 165,278.64 and 76,785.24 is: 105,916.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,820.24 : 165,278.64 = 76,785.24 : x
  2. Step 2: Convert to fraction form
    119,820.24/165,278.64 = 76,785.24/x
  3. Step 3: Cross multiply
    119,820.24x = 165,278.64 × 76,785.24
  4. Step 4: Simplify right side
    119,820.24x = 12,690,960,039.27
  5. Step 5: Solve for x
    x = 12,690,960,039.27/119,820.24
  6. Step 6: Final answer
    x = 105,916.66

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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.