Home / 111,981.90-154,532.70-60,995.20

Finding the Fourth Proportional to 111,981.90, 154,532.70 and 60,995.20

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Solution

The fourth proportional to 111,981.90, 154,532.70 and 60,995.20 is: 84,172.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,981.90 : 154,532.70 = 60,995.20 : x
  2. Step 2: Convert to fraction form
    111,981.90/154,532.70 = 60,995.20/x
  3. Step 3: Cross multiply
    111,981.90x = 154,532.70 × 60,995.20
  4. Step 4: Simplify right side
    111,981.90x = 9,425,752,943.04
  5. Step 5: Solve for x
    x = 9,425,752,943.04/111,981.90
  6. Step 6: Final answer
    x = 84,172.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.