Home / 120,590.04-166,422.80-66,880.20

Finding the Fourth Proportional to 120,590.04, 166,422.80 and 66,880.20

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Solution

The fourth proportional to 120,590.04, 166,422.80 and 66,880.20 is: 92,299.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,590.04 : 166,422.80 = 66,880.20 : x
  2. Step 2: Convert to fraction form
    120,590.04/166,422.80 = 66,880.20/x
  3. Step 3: Cross multiply
    120,590.04x = 166,422.80 × 66,880.20
  4. Step 4: Simplify right side
    120,590.04x = 11,130,390,148.56
  5. Step 5: Solve for x
    x = 11,130,390,148.56/120,590.04
  6. Step 6: Final answer
    x = 92,299.42

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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.