Home / 183,931.57-275,916.80-78,722.29

Finding the Fourth Proportional to 183,931.57, 275,916.80 and 78,722.29

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Solution

The fourth proportional to 183,931.57, 275,916.80 and 78,722.29 is: 118,091.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,931.57 : 275,916.80 = 78,722.29 : x
  2. Step 2: Convert to fraction form
    183,931.57/275,916.80 = 78,722.29/x
  3. Step 3: Cross multiply
    183,931.57x = 275,916.80 × 78,722.29
  4. Step 4: Simplify right side
    183,931.57x = 21,720,802,345.47
  5. Step 5: Solve for x
    x = 21,720,802,345.47/183,931.57
  6. Step 6: Final answer
    x = 118,091.76

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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.