Home / 154,015.65-231,020.24-70,909.65

Finding the Fourth Proportional to 154,015.65, 231,020.24 and 70,909.65

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Solution

The fourth proportional to 154,015.65, 231,020.24 and 70,909.65 is: 106,362.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,015.65 : 231,020.24 = 70,909.65 : x
  2. Step 2: Convert to fraction form
    154,015.65/231,020.24 = 70,909.65/x
  3. Step 3: Cross multiply
    154,015.65x = 231,020.24 × 70,909.65
  4. Step 4: Simplify right side
    154,015.65x = 16,381,564,006.77
  5. Step 5: Solve for x
    x = 16,381,564,006.77/154,015.65
  6. Step 6: Final answer
    x = 106,362.98

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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.