Home / 157,821.15-217,736.60-93,276.84

Finding the Fourth Proportional to 157,821.15, 217,736.60 and 93,276.84

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Solution

The fourth proportional to 157,821.15, 217,736.60 and 93,276.84 is: 128,688.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,821.15 : 217,736.60 = 93,276.84 : x
  2. Step 2: Convert to fraction form
    157,821.15/217,736.60 = 93,276.84/x
  3. Step 3: Cross multiply
    157,821.15x = 217,736.60 × 93,276.84
  4. Step 4: Simplify right side
    157,821.15x = 20,309,781,533.96
  5. Step 5: Solve for x
    x = 20,309,781,533.96/157,821.15
  6. Step 6: Final answer
    x = 128,688.59

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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.