Home / 120,088.04-165,707.10-66,365.73

Finding the Fourth Proportional to 120,088.04, 165,707.10 and 66,365.73

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Solution

The fourth proportional to 120,088.04, 165,707.10 and 66,365.73 is: 91,576.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,088.04 : 165,707.10 = 66,365.73 : x
  2. Step 2: Convert to fraction form
    120,088.04/165,707.10 = 66,365.73/x
  3. Step 3: Cross multiply
    120,088.04x = 165,707.10 × 66,365.73
  4. Step 4: Simplify right side
    120,088.04x = 10,997,272,657.68
  5. Step 5: Solve for x
    x = 10,997,272,657.68/120,088.04
  6. Step 6: Final answer
    x = 91,576.76

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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.