Home / 145,862.76-199,977.90-143,205.69

Finding the Fourth Proportional to 145,862.76, 199,977.90 and 143,205.69

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Solution

The fourth proportional to 145,862.76, 199,977.90 and 143,205.69 is: 196,335.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,862.76 : 199,977.90 = 143,205.69 : x
  2. Step 2: Convert to fraction form
    145,862.76/199,977.90 = 143,205.69/x
  3. Step 3: Cross multiply
    145,862.76x = 199,977.90 × 143,205.69
  4. Step 4: Simplify right side
    145,862.76x = 28,637,973,154.25
  5. Step 5: Solve for x
    x = 28,637,973,154.25/145,862.76
  6. Step 6: Final answer
    x = 196,335.06

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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.