Home / 109,398.90-164,126.03-30,513.12

Finding the Fourth Proportional to 109,398.90, 164,126.03 and 30,513.12

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Solution

The fourth proportional to 109,398.90, 164,126.03 and 30,513.12 is: 45,777.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,398.90 : 164,126.03 = 30,513.12 : x
  2. Step 2: Convert to fraction form
    109,398.90/164,126.03 = 30,513.12/x
  3. Step 3: Cross multiply
    109,398.90x = 164,126.03 × 30,513.12
  4. Step 4: Simplify right side
    109,398.90x = 5,007,997,095.95
  5. Step 5: Solve for x
    x = 5,007,997,095.95/109,398.90
  6. Step 6: Final answer
    x = 45,777.40

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1.5x scale

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.