Home / 163,438.89-225,533.55-91,830.84

Finding the Fourth Proportional to 163,438.89, 225,533.55 and 91,830.84

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Solution

The fourth proportional to 163,438.89, 225,533.55 and 91,830.84 is: 126,719.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,438.89 : 225,533.55 = 91,830.84 : x
  2. Step 2: Convert to fraction form
    163,438.89/225,533.55 = 91,830.84/x
  3. Step 3: Cross multiply
    163,438.89x = 225,533.55 × 91,830.84
  4. Step 4: Simplify right side
    163,438.89x = 20,710,935,344.68
  5. Step 5: Solve for x
    x = 20,710,935,344.68/163,438.89
  6. Step 6: Final answer
    x = 126,719.75

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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.