Home / 120,304.90-166,038.24-69,307.70

Finding the Fourth Proportional to 120,304.90, 166,038.24 and 69,307.70

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Solution

The fourth proportional to 120,304.90, 166,038.24 and 69,307.70 is: 95,654.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,304.90 : 166,038.24 = 69,307.70 : x
  2. Step 2: Convert to fraction form
    120,304.90/166,038.24 = 69,307.70/x
  3. Step 3: Cross multiply
    120,304.90x = 166,038.24 × 69,307.70
  4. Step 4: Simplify right side
    120,304.90x = 11,507,728,526.45
  5. Step 5: Solve for x
    x = 11,507,728,526.45/120,304.90
  6. Step 6: Final answer
    x = 95,654.70

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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.