Home / 154,121.72-231,182.58-43,313.72

Finding the Fourth Proportional to 154,121.72, 231,182.58 and 43,313.72

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Solution

The fourth proportional to 154,121.72, 231,182.58 and 43,313.72 is: 64,970.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,121.72 : 231,182.58 = 43,313.72 : x
  2. Step 2: Convert to fraction form
    154,121.72/231,182.58 = 43,313.72/x
  3. Step 3: Cross multiply
    154,121.72x = 231,182.58 × 43,313.72
  4. Step 4: Simplify right side
    154,121.72x = 10,013,377,430.71
  5. Step 5: Solve for x
    x = 10,013,377,430.71/154,121.72
  6. Step 6: Final answer
    x = 64,970.58

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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.