Home / 120,206.07-165,874.03-66,477.71

Finding the Fourth Proportional to 120,206.07, 165,874.03 and 66,477.71

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Solution

The fourth proportional to 120,206.07, 165,874.03 and 66,477.71 is: 91,733.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,206.07 : 165,874.03 = 66,477.71 : x
  2. Step 2: Convert to fraction form
    120,206.07/165,874.03 = 66,477.71/x
  3. Step 3: Cross multiply
    120,206.07x = 165,874.03 × 66,477.71
  4. Step 4: Simplify right side
    120,206.07x = 11,026,925,911.36
  5. Step 5: Solve for x
    x = 11,026,925,911.36/120,206.07
  6. Step 6: Final answer
    x = 91,733.52

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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.