Home / 152,409.36-210,332.46-91,979.04

Finding the Fourth Proportional to 152,409.36, 210,332.46 and 91,979.04

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Solution

The fourth proportional to 152,409.36, 210,332.46 and 91,979.04 is: 126,935.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,409.36 : 210,332.46 = 91,979.04 : x
  2. Step 2: Convert to fraction form
    152,409.36/210,332.46 = 91,979.04/x
  3. Step 3: Cross multiply
    152,409.36x = 210,332.46 × 91,979.04
  4. Step 4: Simplify right side
    152,409.36x = 19,346,177,751.64
  5. Step 5: Solve for x
    x = 19,346,177,751.64/152,409.36
  6. Step 6: Final answer
    x = 126,935.63

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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.