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Finding the Fourth Proportional to 128,792.80, 193,167.32 and 34,024.01

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Solution

The fourth proportional to 128,792.80, 193,167.32 and 34,024.01 is: 51,030.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,792.80 : 193,167.32 = 34,024.01 : x
  2. Step 2: Convert to fraction form
    128,792.80/193,167.32 = 34,024.01/x
  3. Step 3: Cross multiply
    128,792.80x = 193,167.32 × 34,024.01
  4. Step 4: Simplify right side
    128,792.80x = 6,572,326,827.35
  5. Step 5: Solve for x
    x = 6,572,326,827.35/128,792.80
  6. Step 6: Final answer
    x = 51,030.24

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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.