Home / 120,751.48-166,656.90-70,450.36

Finding the Fourth Proportional to 120,751.48, 166,656.90 and 70,450.36

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Solution

The fourth proportional to 120,751.48, 166,656.90 and 70,450.36 is: 97,233.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,751.48 : 166,656.90 = 70,450.36 : x
  2. Step 2: Convert to fraction form
    120,751.48/166,656.90 = 70,450.36/x
  3. Step 3: Cross multiply
    120,751.48x = 166,656.90 × 70,450.36
  4. Step 4: Simplify right side
    120,751.48x = 11,741,038,601.48
  5. Step 5: Solve for x
    x = 11,741,038,601.48/120,751.48
  6. Step 6: Final answer
    x = 97,233.08

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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.