Home / 120,605.10-166,444.98-66,907.40

Finding the Fourth Proportional to 120,605.10, 166,444.98 and 66,907.40

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Solution

The fourth proportional to 120,605.10, 166,444.98 and 66,907.40 is: 92,337.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,605.10 : 166,444.98 = 66,907.40 : x
  2. Step 2: Convert to fraction form
    120,605.10/166,444.98 = 66,907.40/x
  3. Step 3: Cross multiply
    120,605.10x = 166,444.98 × 66,907.40
  4. Step 4: Simplify right side
    120,605.10x = 11,136,400,854.85
  5. Step 5: Solve for x
    x = 11,136,400,854.85/120,605.10
  6. Step 6: Final answer
    x = 92,337.73

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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.