Home / 109,225.77-163,628.71-66,982.66

Finding the Fourth Proportional to 109,225.77, 163,628.71 and 66,982.66

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Solution

The fourth proportional to 109,225.77, 163,628.71 and 66,982.66 is: 100,345.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,225.77 : 163,628.71 = 66,982.66 : x
  2. Step 2: Convert to fraction form
    109,225.77/163,628.71 = 66,982.66/x
  3. Step 3: Cross multiply
    109,225.77x = 163,628.71 × 66,982.66
  4. Step 4: Simplify right side
    109,225.77x = 10,960,286,248.17
  5. Step 5: Solve for x
    x = 10,960,286,248.17/109,225.77
  6. Step 6: Final answer
    x = 100,345.24

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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.