Home / 120,580.04-166,408.98-66,870.20

Finding the Fourth Proportional to 120,580.04, 166,408.98 and 66,870.20

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Solution

The fourth proportional to 120,580.04, 166,408.98 and 66,870.20 is: 92,285.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,580.04 : 166,408.98 = 66,870.20 : x
  2. Step 2: Convert to fraction form
    120,580.04/166,408.98 = 66,870.20/x
  3. Step 3: Cross multiply
    120,580.04x = 166,408.98 × 66,870.20
  4. Step 4: Simplify right side
    120,580.04x = 11,127,801,774.40
  5. Step 5: Solve for x
    x = 11,127,801,774.40/120,580.04
  6. Step 6: Final answer
    x = 92,285.60

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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.