Home / 217,368.15-299,951.55-121,856.73

Finding the Fourth Proportional to 217,368.15, 299,951.55 and 121,856.73

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Solution

The fourth proportional to 217,368.15, 299,951.55 and 121,856.73 is: 168,153.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,368.15 : 299,951.55 = 121,856.73 : x
  2. Step 2: Convert to fraction form
    217,368.15/299,951.55 = 121,856.73/x
  3. Step 3: Cross multiply
    217,368.15x = 299,951.55 × 121,856.73
  4. Step 4: Simplify right side
    217,368.15x = 36,551,115,041.43
  5. Step 5: Solve for x
    x = 36,551,115,041.43/217,368.15
  6. Step 6: Final answer
    x = 168,153.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.