Home / 145,811.76-199,907.90-143,154.56

Finding the Fourth Proportional to 145,811.76, 199,907.90 and 143,154.56

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Solution

The fourth proportional to 145,811.76, 199,907.90 and 143,154.56 is: 196,264.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,811.76 : 199,907.90 = 143,154.56 : x
  2. Step 2: Convert to fraction form
    145,811.76/199,907.90 = 143,154.56/x
  3. Step 3: Cross multiply
    145,811.76x = 199,907.90 × 143,154.56
  4. Step 4: Simplify right side
    145,811.76x = 28,617,727,465.02
  5. Step 5: Solve for x
    x = 28,617,727,465.02/145,811.76
  6. Step 6: Final answer
    x = 196,264.88

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.