Home / 235,848.54-325,463.40-128,417.70

Finding the Fourth Proportional to 235,848.54, 325,463.40 and 128,417.70

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Solution

The fourth proportional to 235,848.54, 325,463.40 and 128,417.70 is: 177,212.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,848.54 : 325,463.40 = 128,417.70 : x
  2. Step 2: Convert to fraction form
    235,848.54/325,463.40 = 128,417.70/x
  3. Step 3: Cross multiply
    235,848.54x = 325,463.40 × 128,417.70
  4. Step 4: Simplify right side
    235,848.54x = 41,795,261,262.18
  5. Step 5: Solve for x
    x = 41,795,261,262.18/235,848.54
  6. Step 6: Final answer
    x = 177,212.30

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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.