Home / 140,154.09-210,292.71-73,578.78

Finding the Fourth Proportional to 140,154.09, 210,292.71 and 73,578.78

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Solution

The fourth proportional to 140,154.09, 210,292.71 and 73,578.78 is: 110,400.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,154.09 : 210,292.71 = 73,578.78 : x
  2. Step 2: Convert to fraction form
    140,154.09/210,292.71 = 73,578.78/x
  3. Step 3: Cross multiply
    140,154.09x = 210,292.71 × 73,578.78
  4. Step 4: Simplify right side
    140,154.09x = 15,473,081,044.69
  5. Step 5: Solve for x
    x = 15,473,081,044.69/140,154.09
  6. Step 6: Final answer
    x = 110,400.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.