Home / 132,678.28-183,089.91-72,248.68

Finding the Fourth Proportional to 132,678.28, 183,089.91 and 72,248.68

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Solution

The fourth proportional to 132,678.28, 183,089.91 and 72,248.68 is: 99,699.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,678.28 : 183,089.91 = 72,248.68 : x
  2. Step 2: Convert to fraction form
    132,678.28/183,089.91 = 72,248.68/x
  3. Step 3: Cross multiply
    132,678.28x = 183,089.91 × 72,248.68
  4. Step 4: Simplify right side
    132,678.28x = 13,228,004,318.82
  5. Step 5: Solve for x
    x = 13,228,004,318.82/132,678.28
  6. Step 6: Final answer
    x = 99,699.85

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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.