Home / 120,705.18-166,573.32-66,988.81

Finding the Fourth Proportional to 120,705.18, 166,573.32 and 66,988.81

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Solution

The fourth proportional to 120,705.18, 166,573.32 and 66,988.81 is: 92,444.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,705.18 : 166,573.32 = 66,988.81 : x
  2. Step 2: Convert to fraction form
    120,705.18/166,573.32 = 66,988.81/x
  3. Step 3: Cross multiply
    120,705.18x = 166,573.32 × 66,988.81
  4. Step 4: Simplify right side
    120,705.18x = 11,158,548,484.55
  5. Step 5: Solve for x
    x = 11,158,548,484.55/120,705.18
  6. Step 6: Final answer
    x = 92,444.65

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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.