Home / 185,533.60-256,218.24-128,319.52

Finding the Fourth Proportional to 185,533.60, 256,218.24 and 128,319.52

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Solution

The fourth proportional to 185,533.60, 256,218.24 and 128,319.52 is: 177,206.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,533.60 : 256,218.24 = 128,319.52 : x
  2. Step 2: Convert to fraction form
    185,533.60/256,218.24 = 128,319.52/x
  3. Step 3: Cross multiply
    185,533.60x = 256,218.24 × 128,319.52
  4. Step 4: Simplify right side
    185,533.60x = 32,877,801,572.04
  5. Step 5: Solve for x
    x = 32,877,801,572.04/185,533.60
  6. Step 6: Final answer
    x = 177,206.72

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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.