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Finding the Fourth Proportional to 152,718.93, 210,744.84 and 84,735.12

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Solution

The fourth proportional to 152,718.93, 210,744.84 and 84,735.12 is: 116,930.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,718.93 : 210,744.84 = 84,735.12 : x
  2. Step 2: Convert to fraction form
    152,718.93/210,744.84 = 84,735.12/x
  3. Step 3: Cross multiply
    152,718.93x = 210,744.84 × 84,735.12
  4. Step 4: Simplify right side
    152,718.93x = 17,857,489,306.78
  5. Step 5: Solve for x
    x = 17,857,489,306.78/152,718.93
  6. Step 6: Final answer
    x = 116,930.42

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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.