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Finding the Fourth Proportional to 152,778.84, 210,834.90 and 84,795.84

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Solution

The fourth proportional to 152,778.84, 210,834.90 and 84,795.84 is: 117,018.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,778.84 : 210,834.90 = 84,795.84 : x
  2. Step 2: Convert to fraction form
    152,778.84/210,834.90 = 84,795.84/x
  3. Step 3: Cross multiply
    152,778.84x = 210,834.90 × 84,795.84
  4. Step 4: Simplify right side
    152,778.84x = 17,877,922,446.82
  5. Step 5: Solve for x
    x = 17,877,922,446.82/152,778.84
  6. Step 6: Final answer
    x = 117,018.32

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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.