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Finding the Fourth Proportional to 152,795, 210,834.63 and 84,812.49

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Solution

The fourth proportional to 152,795, 210,834.63 and 84,812.49 is: 117,028.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,795 : 210,834.63 = 84,812.49 : x
  2. Step 2: Convert to fraction form
    152,795/210,834.63 = 84,812.49/x
  3. Step 3: Cross multiply
    152,795x = 210,834.63 × 84,812.49
  4. Step 4: Simplify right side
    152,795x = 17,881,409,948.53
  5. Step 5: Solve for x
    x = 17,881,409,948.53/152,795
  6. Step 6: Final answer
    x = 117,028.76

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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.