Home / 120,587.66-166,411.42-66,877.64

Finding the Fourth Proportional to 120,587.66, 166,411.42 and 66,877.64

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Solution

The fourth proportional to 120,587.66, 166,411.42 and 66,877.64 is: 92,291.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,587.66 : 166,411.42 = 66,877.64 : x
  2. Step 2: Convert to fraction form
    120,587.66/166,411.42 = 66,877.64/x
  3. Step 3: Cross multiply
    120,587.66x = 166,411.42 × 66,877.64
  4. Step 4: Simplify right side
    120,587.66x = 11,129,203,038.65
  5. Step 5: Solve for x
    x = 11,129,203,038.65/120,587.66
  6. Step 6: Final answer
    x = 92,291.39

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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.