Home / 154,946.16-231,920.99-79,964.18

Finding the Fourth Proportional to 154,946.16, 231,920.99 and 79,964.18

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Solution

The fourth proportional to 154,946.16, 231,920.99 and 79,964.18 is: 119,689.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,946.16 : 231,920.99 = 79,964.18 : x
  2. Step 2: Convert to fraction form
    154,946.16/231,920.99 = 79,964.18/x
  3. Step 3: Cross multiply
    154,946.16x = 231,920.99 × 79,964.18
  4. Step 4: Simplify right side
    154,946.16x = 18,545,370,230.71
  5. Step 5: Solve for x
    x = 18,545,370,230.71/154,946.16
  6. Step 6: Final answer
    x = 119,689.12

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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.