Home / 109,060.20-163,686.30-64,631.40

Finding the Fourth Proportional to 109,060.20, 163,686.30 and 64,631.40

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Solution

The fourth proportional to 109,060.20, 163,686.30 and 64,631.40 is: 97,003.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,060.20 : 163,686.30 = 64,631.40 : x
  2. Step 2: Convert to fraction form
    109,060.20/163,686.30 = 64,631.40/x
  3. Step 3: Cross multiply
    109,060.20x = 163,686.30 × 64,631.40
  4. Step 4: Simplify right side
    109,060.20x = 10,579,274,729.82
  5. Step 5: Solve for x
    x = 10,579,274,729.82/109,060.20
  6. Step 6: Final answer
    x = 97,003.99

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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.