Home / 119,887.35-165,434.06-76,790.81

Finding the Fourth Proportional to 119,887.35, 165,434.06 and 76,790.81

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Solution

The fourth proportional to 119,887.35, 165,434.06 and 76,790.81 is: 105,964.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,887.35 : 165,434.06 = 76,790.81 : x
  2. Step 2: Convert to fraction form
    119,887.35/165,434.06 = 76,790.81/x
  3. Step 3: Cross multiply
    119,887.35x = 165,434.06 × 76,790.81
  4. Step 4: Simplify right side
    119,887.35x = 12,703,814,911.34
  5. Step 5: Solve for x
    x = 12,703,814,911.34/119,887.35
  6. Step 6: Final answer
    x = 105,964.60

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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.