Home / 120,728.84-166,616.34-70,444.04

Finding the Fourth Proportional to 120,728.84, 166,616.34 and 70,444.04

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Solution

The fourth proportional to 120,728.84, 166,616.34 and 70,444.04 is: 97,218.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,728.84 : 166,616.34 = 70,444.04 : x
  2. Step 2: Convert to fraction form
    120,728.84/166,616.34 = 70,444.04/x
  3. Step 3: Cross multiply
    120,728.84x = 166,616.34 × 70,444.04
  4. Step 4: Simplify right side
    120,728.84x = 11,737,128,119.61
  5. Step 5: Solve for x
    x = 11,737,128,119.61/120,728.84
  6. Step 6: Final answer
    x = 97,218.93

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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.