Home / 235,724.76-325,308.15-128,298.69

Finding the Fourth Proportional to 235,724.76, 325,308.15 and 128,298.69

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Solution

The fourth proportional to 235,724.76, 325,308.15 and 128,298.69 is: 177,056.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,724.76 : 325,308.15 = 128,298.69 : x
  2. Step 2: Convert to fraction form
    235,724.76/325,308.15 = 128,298.69/x
  3. Step 3: Cross multiply
    235,724.76x = 325,308.15 × 128,298.69
  4. Step 4: Simplify right side
    235,724.76x = 41,736,609,491.32
  5. Step 5: Solve for x
    x = 41,736,609,491.32/235,724.76
  6. Step 6: Final answer
    x = 177,056.54

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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.