Home / 111,470.29-153,956.77-73,400.03

Finding the Fourth Proportional to 111,470.29, 153,956.77 and 73,400.03

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Solution

The fourth proportional to 111,470.29, 153,956.77 and 73,400.03 is: 101,376.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,470.29 : 153,956.77 = 73,400.03 : x
  2. Step 2: Convert to fraction form
    111,470.29/153,956.77 = 73,400.03/x
  3. Step 3: Cross multiply
    111,470.29x = 153,956.77 × 73,400.03
  4. Step 4: Simplify right side
    111,470.29x = 11,300,431,423.84
  5. Step 5: Solve for x
    x = 11,300,431,423.84/111,470.29
  6. Step 6: Final answer
    x = 101,376.17

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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.