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Finding the Fourth Proportional to 142,696.79, 214,026.69 and 53,938.75

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Solution

The fourth proportional to 142,696.79, 214,026.69 and 53,938.75 is: 80,901.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,696.79 : 214,026.69 = 53,938.75 : x
  2. Step 2: Convert to fraction form
    142,696.79/214,026.69 = 53,938.75/x
  3. Step 3: Cross multiply
    142,696.79x = 214,026.69 × 53,938.75
  4. Step 4: Simplify right side
    142,696.79x = 11,544,331,792.44
  5. Step 5: Solve for x
    x = 11,544,331,792.44/142,696.79
  6. Step 6: Final answer
    x = 80,901.13

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1.5x scale

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.