Home / 140,154.07-210,264.59-45,384.36

Finding the Fourth Proportional to 140,154.07, 210,264.59 and 45,384.36

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Solution

The fourth proportional to 140,154.07, 210,264.59 and 45,384.36 is: 68,087.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,154.07 : 210,264.59 = 45,384.36 : x
  2. Step 2: Convert to fraction form
    140,154.07/210,264.59 = 45,384.36/x
  3. Step 3: Cross multiply
    140,154.07x = 210,264.59 × 45,384.36
  4. Step 4: Simplify right side
    140,154.07x = 9,542,723,847.81
  5. Step 5: Solve for x
    x = 9,542,723,847.81/140,154.07
  6. Step 6: Final answer
    x = 68,087.38

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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.