Home / 120,869.55-166,802.90-67,156.83

Finding the Fourth Proportional to 120,869.55, 166,802.90 and 67,156.83

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Solution

The fourth proportional to 120,869.55, 166,802.90 and 67,156.83 is: 92,678.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,869.55 : 166,802.90 = 67,156.83 : x
  2. Step 2: Convert to fraction form
    120,869.55/166,802.90 = 67,156.83/x
  3. Step 3: Cross multiply
    120,869.55x = 166,802.90 × 67,156.83
  4. Step 4: Simplify right side
    120,869.55x = 11,201,953,663.02
  5. Step 5: Solve for x
    x = 11,201,953,663.02/120,869.55
  6. Step 6: Final answer
    x = 92,678.05

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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.