Home / 163,537.30-225,678.72-91,931.68

Finding the Fourth Proportional to 163,537.30, 225,678.72 and 91,931.68

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Solution

The fourth proportional to 163,537.30, 225,678.72 and 91,931.68 is: 126,864.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,537.30 : 225,678.72 = 91,931.68 : x
  2. Step 2: Convert to fraction form
    163,537.30/225,678.72 = 91,931.68/x
  3. Step 3: Cross multiply
    163,537.30x = 225,678.72 × 91,931.68
  4. Step 4: Simplify right side
    163,537.30x = 20,747,023,869.85
  5. Step 5: Solve for x
    x = 20,747,023,869.85/163,537.30
  6. Step 6: Final answer
    x = 126,864.17

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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.