Home / 152,140.53-209,937.78-84,146.70

Finding the Fourth Proportional to 152,140.53, 209,937.78 and 84,146.70

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Solution

The fourth proportional to 152,140.53, 209,937.78 and 84,146.70 is: 116,113.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,140.53 : 209,937.78 = 84,146.70 : x
  2. Step 2: Convert to fraction form
    152,140.53/209,937.78 = 84,146.70/x
  3. Step 3: Cross multiply
    152,140.53x = 209,937.78 × 84,146.70
  4. Step 4: Simplify right side
    152,140.53x = 17,665,571,392.33
  5. Step 5: Solve for x
    x = 17,665,571,392.33/152,140.53
  6. Step 6: Final answer
    x = 116,113.51

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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.