Home / 163,125.24-225,123.12-91,509.72

Finding the Fourth Proportional to 163,125.24, 225,123.12 and 91,509.72

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Solution

The fourth proportional to 163,125.24, 225,123.12 and 91,509.72 is: 126,289.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,125.24 : 225,123.12 = 91,509.72 : x
  2. Step 2: Convert to fraction form
    163,125.24/225,123.12 = 91,509.72/x
  3. Step 3: Cross multiply
    163,125.24x = 225,123.12 × 91,509.72
  4. Step 4: Simplify right side
    163,125.24x = 20,600,953,676.73
  5. Step 5: Solve for x
    x = 20,600,953,676.73/163,125.24
  6. Step 6: Final answer
    x = 126,289.19

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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.