Home / 215,916.98-297,965.83-120,429.83

Finding the Fourth Proportional to 215,916.98, 297,965.83 and 120,429.83

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Solution

The fourth proportional to 215,916.98, 297,965.83 and 120,429.83 is: 166,193.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,916.98 : 297,965.83 = 120,429.83 : x
  2. Step 2: Convert to fraction form
    215,916.98/297,965.83 = 120,429.83/x
  3. Step 3: Cross multiply
    215,916.98x = 297,965.83 × 120,429.83
  4. Step 4: Simplify right side
    215,916.98x = 35,883,974,252.71
  5. Step 5: Solve for x
    x = 35,883,974,252.71/215,916.98
  6. Step 6: Final answer
    x = 166,193.39

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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.