Home / 152,400.49-210,336.75-91,979.75

Finding the Fourth Proportional to 152,400.49, 210,336.75 and 91,979.75

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Solution

The fourth proportional to 152,400.49, 210,336.75 and 91,979.75 is: 126,946.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,400.49 : 210,336.75 = 91,979.75 : x
  2. Step 2: Convert to fraction form
    152,400.49/210,336.75 = 91,979.75/x
  3. Step 3: Cross multiply
    152,400.49x = 210,336.75 × 91,979.75
  4. Step 4: Simplify right side
    152,400.49x = 19,346,722,206.65
  5. Step 5: Solve for x
    x = 19,346,722,206.65/152,400.49
  6. Step 6: Final answer
    x = 126,946.59

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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.