Home / 120,830.04-166,767.30-69,835.74

Finding the Fourth Proportional to 120,830.04, 166,767.30 and 69,835.74

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Solution

The fourth proportional to 120,830.04, 166,767.30 and 69,835.74 is: 96,385.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,830.04 : 166,767.30 = 69,835.74 : x
  2. Step 2: Convert to fraction form
    120,830.04/166,767.30 = 69,835.74/x
  3. Step 3: Cross multiply
    120,830.04x = 166,767.30 × 69,835.74
  4. Step 4: Simplify right side
    120,830.04x = 11,646,317,803.30
  5. Step 5: Solve for x
    x = 11,646,317,803.30/120,830.04
  6. Step 6: Final answer
    x = 96,385.95

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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.