Home / 217,969.61-326,952.32-129,159.18

Finding the Fourth Proportional to 217,969.61, 326,952.32 and 129,159.18

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Solution

The fourth proportional to 217,969.61, 326,952.32 and 129,159.18 is: 193,737.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,969.61 : 326,952.32 = 129,159.18 : x
  2. Step 2: Convert to fraction form
    217,969.61/326,952.32 = 129,159.18/x
  3. Step 3: Cross multiply
    217,969.61x = 326,952.32 × 129,159.18
  4. Step 4: Simplify right side
    217,969.61x = 42,228,892,904.50
  5. Step 5: Solve for x
    x = 42,228,892,904.50/217,969.61
  6. Step 6: Final answer
    x = 193,737.53

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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.