Home / 147,406.76-220,669.45-90,300.77

Finding the Fourth Proportional to 147,406.76, 220,669.45 and 90,300.77

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Solution

The fourth proportional to 147,406.76, 220,669.45 and 90,300.77 is: 135,181.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,406.76 : 220,669.45 = 90,300.77 : x
  2. Step 2: Convert to fraction form
    147,406.76/220,669.45 = 90,300.77/x
  3. Step 3: Cross multiply
    147,406.76x = 220,669.45 × 90,300.77
  4. Step 4: Simplify right side
    147,406.76x = 19,926,619,921.38
  5. Step 5: Solve for x
    x = 19,926,619,921.38/147,406.76
  6. Step 6: Final answer
    x = 135,181.19

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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.