Home / 119,733.74-165,240.05-66,018.68

Finding the Fourth Proportional to 119,733.74, 165,240.05 and 66,018.68

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Solution

The fourth proportional to 119,733.74, 165,240.05 and 66,018.68 is: 91,109.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,733.74 : 165,240.05 = 66,018.68 : x
  2. Step 2: Convert to fraction form
    119,733.74/165,240.05 = 66,018.68/x
  3. Step 3: Cross multiply
    119,733.74x = 165,240.05 × 66,018.68
  4. Step 4: Simplify right side
    119,733.74x = 10,908,928,827.84
  5. Step 5: Solve for x
    x = 10,908,928,827.84/119,733.74
  6. Step 6: Final answer
    x = 91,109.90

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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.