Home / 109,302.20-163,953.30-99,625.40

Finding the Fourth Proportional to 109,302.20, 163,953.30 and 99,625.40

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Solution

The fourth proportional to 109,302.20, 163,953.30 and 99,625.40 is: 149,438.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,302.20 : 163,953.30 = 99,625.40 : x
  2. Step 2: Convert to fraction form
    109,302.20/163,953.30 = 99,625.40/x
  3. Step 3: Cross multiply
    109,302.20x = 163,953.30 × 99,625.40
  4. Step 4: Simplify right side
    109,302.20x = 16,333,913,093.82
  5. Step 5: Solve for x
    x = 16,333,913,093.82/109,302.20
  6. Step 6: Final answer
    x = 149,438.10

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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.