Home / 147,290.50-203,261.30-83,638.27

Finding the Fourth Proportional to 147,290.50, 203,261.30 and 83,638.27

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Solution

The fourth proportional to 147,290.50, 203,261.30 and 83,638.27 is: 115,421.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,290.50 : 203,261.30 = 83,638.27 : x
  2. Step 2: Convert to fraction form
    147,290.50/203,261.30 = 83,638.27/x
  3. Step 3: Cross multiply
    147,290.50x = 203,261.30 × 83,638.27
  4. Step 4: Simplify right side
    147,290.50x = 17,000,423,489.95
  5. Step 5: Solve for x
    x = 17,000,423,489.95/147,290.50
  6. Step 6: Final answer
    x = 115,421.05

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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.