Home / 154,810.20-231,908.10-89,069.40

Finding the Fourth Proportional to 154,810.20, 231,908.10 and 89,069.40

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Solution

The fourth proportional to 154,810.20, 231,908.10 and 89,069.40 is: 133,427.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,810.20 : 231,908.10 = 89,069.40 : x
  2. Step 2: Convert to fraction form
    154,810.20/231,908.10 = 89,069.40/x
  3. Step 3: Cross multiply
    154,810.20x = 231,908.10 × 89,069.40
  4. Step 4: Simplify right side
    154,810.20x = 20,655,915,322.14
  5. Step 5: Solve for x
    x = 20,655,915,322.14/154,810.20
  6. Step 6: Final answer
    x = 133,427.35

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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.