Home / 122,868.96-169,557.48-71,916.72

Finding the Fourth Proportional to 122,868.96, 169,557.48 and 71,916.72

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Solution

The fourth proportional to 122,868.96, 169,557.48 and 71,916.72 is: 99,244.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,868.96 : 169,557.48 = 71,916.72 : x
  2. Step 2: Convert to fraction form
    122,868.96/169,557.48 = 71,916.72/x
  3. Step 3: Cross multiply
    122,868.96x = 169,557.48 × 71,916.72
  4. Step 4: Simplify right side
    122,868.96x = 12,194,017,813.07
  5. Step 5: Solve for x
    x = 12,194,017,813.07/122,868.96
  6. Step 6: Final answer
    x = 99,244.09

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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.