Home / 138,090.96-207,148.24-59,186.40

Finding the Fourth Proportional to 138,090.96, 207,148.24 and 59,186.40

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Solution

The fourth proportional to 138,090.96, 207,148.24 and 59,186.40 is: 88,784.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,090.96 : 207,148.24 = 59,186.40 : x
  2. Step 2: Convert to fraction form
    138,090.96/207,148.24 = 59,186.40/x
  3. Step 3: Cross multiply
    138,090.96x = 207,148.24 × 59,186.40
  4. Step 4: Simplify right side
    138,090.96x = 12,260,358,591.94
  5. Step 5: Solve for x
    x = 12,260,358,591.94/138,090.96
  6. Step 6: Final answer
    x = 88,784.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.