Home / 191,015.49-286,532.75-72,696

Finding the Fourth Proportional to 191,015.49, 286,532.75 and 72,696

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Solution

The fourth proportional to 191,015.49, 286,532.75 and 72,696 is: 109,047.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,015.49 : 286,532.75 = 72,696 : x
  2. Step 2: Convert to fraction form
    191,015.49/286,532.75 = 72,696/x
  3. Step 3: Cross multiply
    191,015.49x = 286,532.75 × 72,696
  4. Step 4: Simplify right side
    191,015.49x = 20,829,784,794
  5. Step 5: Solve for x
    x = 20,829,784,794/191,015.49
  6. Step 6: Final answer
    x = 109,047.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.