Home / 111,802.32-154,356.12-76,937.04

Finding the Fourth Proportional to 111,802.32, 154,356.12 and 76,937.04

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Solution

The fourth proportional to 111,802.32, 154,356.12 and 76,937.04 is: 106,220.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,802.32 : 154,356.12 = 76,937.04 : x
  2. Step 2: Convert to fraction form
    111,802.32/154,356.12 = 76,937.04/x
  3. Step 3: Cross multiply
    111,802.32x = 154,356.12 × 76,937.04
  4. Step 4: Simplify right side
    111,802.32x = 11,875,702,978.68
  5. Step 5: Solve for x
    x = 11,875,702,978.68/111,802.32
  6. Step 6: Final answer
    x = 106,220.54

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1.5x scale

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.