Home / 143,799.28-215,675.55-67,897.68

Finding the Fourth Proportional to 143,799.28, 215,675.55 and 67,897.68

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Solution

The fourth proportional to 143,799.28, 215,675.55 and 67,897.68 is: 101,835.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,799.28 : 215,675.55 = 67,897.68 : x
  2. Step 2: Convert to fraction form
    143,799.28/215,675.55 = 67,897.68/x
  3. Step 3: Cross multiply
    143,799.28x = 215,675.55 × 67,897.68
  4. Step 4: Simplify right side
    143,799.28x = 14,643,869,477.72
  5. Step 5: Solve for x
    x = 14,643,869,477.72/143,799.28
  6. Step 6: Final answer
    x = 101,835.49

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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.