Home / 189,402.90-261,420.72-108,877.14

Finding the Fourth Proportional to 189,402.90, 261,420.72 and 108,877.14

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Solution

The fourth proportional to 189,402.90, 261,420.72 and 108,877.14 is: 150,276.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,402.90 : 261,420.72 = 108,877.14 : x
  2. Step 2: Convert to fraction form
    189,402.90/261,420.72 = 108,877.14/x
  3. Step 3: Cross multiply
    189,402.90x = 261,420.72 × 108,877.14
  4. Step 4: Simplify right side
    189,402.90x = 28,462,740,330.34
  5. Step 5: Solve for x
    x = 28,462,740,330.34/189,402.90
  6. Step 6: Final answer
    x = 150,276.16

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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.