Home / 161,970.26-243,025.55-87,002.93

Finding the Fourth Proportional to 161,970.26, 243,025.55 and 87,002.93

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Solution

The fourth proportional to 161,970.26, 243,025.55 and 87,002.93 is: 130,542.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,970.26 : 243,025.55 = 87,002.93 : x
  2. Step 2: Convert to fraction form
    161,970.26/243,025.55 = 87,002.93/x
  3. Step 3: Cross multiply
    161,970.26x = 243,025.55 × 87,002.93
  4. Step 4: Simplify right side
    161,970.26x = 21,143,935,739.93
  5. Step 5: Solve for x
    x = 21,143,935,739.93/161,970.26
  6. Step 6: Final answer
    x = 130,542.09

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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.