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Finding the Fourth Proportional to 152,677.35, 210,696.01 and 84,698.78

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Solution

The fourth proportional to 152,677.35, 210,696.01 and 84,698.78 is: 116,885.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,677.35 : 210,696.01 = 84,698.78 : x
  2. Step 2: Convert to fraction form
    152,677.35/210,696.01 = 84,698.78/x
  3. Step 3: Cross multiply
    152,677.35x = 210,696.01 × 84,698.78
  4. Step 4: Simplify right side
    152,677.35x = 17,845,694,997.87
  5. Step 5: Solve for x
    x = 17,845,694,997.87/152,677.35
  6. Step 6: Final answer
    x = 116,885.02

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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.