Home / 109,231.30-163,518.90-64,835.20

Finding the Fourth Proportional to 109,231.30, 163,518.90 and 64,835.20

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Solution

The fourth proportional to 109,231.30, 163,518.90 and 64,835.20 is: 97,058.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,231.30 : 163,518.90 = 64,835.20 : x
  2. Step 2: Convert to fraction form
    109,231.30/163,518.90 = 64,835.20/x
  3. Step 3: Cross multiply
    109,231.30x = 163,518.90 × 64,835.20
  4. Step 4: Simplify right side
    109,231.30x = 10,601,780,585.28
  5. Step 5: Solve for x
    x = 10,601,780,585.28/109,231.30
  6. Step 6: Final answer
    x = 97,058.08

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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.