Home / 131,438.23-197,165.56-89,300.20

Finding the Fourth Proportional to 131,438.23, 197,165.56 and 89,300.20

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Solution

The fourth proportional to 131,438.23, 197,165.56 and 89,300.20 is: 133,955.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,438.23 : 197,165.56 = 89,300.20 : x
  2. Step 2: Convert to fraction form
    131,438.23/197,165.56 = 89,300.20/x
  3. Step 3: Cross multiply
    131,438.23x = 197,165.56 × 89,300.20
  4. Step 4: Simplify right side
    131,438.23x = 17,606,923,941.11
  5. Step 5: Solve for x
    x = 17,606,923,941.11/131,438.23
  6. Step 6: Final answer
    x = 133,955.88

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1.5x scale

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.