Home / 109,489.10-164,233.65-42,907.10

Finding the Fourth Proportional to 109,489.10, 164,233.65 and 42,907.10

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Solution

The fourth proportional to 109,489.10, 164,233.65 and 42,907.10 is: 64,360.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,489.10 : 164,233.65 = 42,907.10 : x
  2. Step 2: Convert to fraction form
    109,489.10/164,233.65 = 42,907.10/x
  3. Step 3: Cross multiply
    109,489.10x = 164,233.65 × 42,907.10
  4. Step 4: Simplify right side
    109,489.10x = 7,046,789,643.92
  5. Step 5: Solve for x
    x = 7,046,789,643.92/109,489.10
  6. Step 6: Final answer
    x = 64,360.65

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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.