Home / 120,228.63-165,901.16-66,506.35

Finding the Fourth Proportional to 120,228.63, 165,901.16 and 66,506.35

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Solution

The fourth proportional to 120,228.63, 165,901.16 and 66,506.35 is: 91,770.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,228.63 : 165,901.16 = 66,506.35 : x
  2. Step 2: Convert to fraction form
    120,228.63/165,901.16 = 66,506.35/x
  3. Step 3: Cross multiply
    120,228.63x = 165,901.16 × 66,506.35
  4. Step 4: Simplify right side
    120,228.63x = 11,033,480,612.37
  5. Step 5: Solve for x
    x = 11,033,480,612.37/120,228.63
  6. Step 6: Final answer
    x = 91,770.83

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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.