Home / 154,043.60-231,065.40-70,937.60

Finding the Fourth Proportional to 154,043.60, 231,065.40 and 70,937.60

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Solution

The fourth proportional to 154,043.60, 231,065.40 and 70,937.60 is: 106,406.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,043.60 : 231,065.40 = 70,937.60 : x
  2. Step 2: Convert to fraction form
    154,043.60/231,065.40 = 70,937.60/x
  3. Step 3: Cross multiply
    154,043.60x = 231,065.40 × 70,937.60
  4. Step 4: Simplify right side
    154,043.60x = 16,391,224,919.04
  5. Step 5: Solve for x
    x = 16,391,224,919.04/154,043.60
  6. Step 6: Final answer
    x = 106,406.40

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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.