Home / 147,790.58-203,886.05-90,432.59

Finding the Fourth Proportional to 147,790.58, 203,886.05 and 90,432.59

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Solution

The fourth proportional to 147,790.58, 203,886.05 and 90,432.59 is: 124,757.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,790.58 : 203,886.05 = 90,432.59 : x
  2. Step 2: Convert to fraction form
    147,790.58/203,886.05 = 90,432.59/x
  3. Step 3: Cross multiply
    147,790.58x = 203,886.05 × 90,432.59
  4. Step 4: Simplify right side
    147,790.58x = 18,437,942,094.78
  5. Step 5: Solve for x
    x = 18,437,942,094.78/147,790.58
  6. Step 6: Final answer
    x = 124,757.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.