Home / 152,947.78-211,069.38-84,038.68

Finding the Fourth Proportional to 152,947.78, 211,069.38 and 84,038.68

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Solution

The fourth proportional to 152,947.78, 211,069.38 and 84,038.68 is: 115,974.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,947.78 : 211,069.38 = 84,038.68 : x
  2. Step 2: Convert to fraction form
    152,947.78/211,069.38 = 84,038.68/x
  3. Step 3: Cross multiply
    152,947.78x = 211,069.38 × 84,038.68
  4. Step 4: Simplify right side
    152,947.78x = 17,737,992,083.62
  5. Step 5: Solve for x
    x = 17,737,992,083.62/152,947.78
  6. Step 6: Final answer
    x = 115,974.17

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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.