Home / 122,913.72-169,621.06-69,199.16

Finding the Fourth Proportional to 122,913.72, 169,621.06 and 69,199.16

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Solution

The fourth proportional to 122,913.72, 169,621.06 and 69,199.16 is: 95,494.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,913.72 : 169,621.06 = 69,199.16 : x
  2. Step 2: Convert to fraction form
    122,913.72/169,621.06 = 69,199.16/x
  3. Step 3: Cross multiply
    122,913.72x = 169,621.06 × 69,199.16
  4. Step 4: Simplify right side
    122,913.72x = 11,737,634,870.31
  5. Step 5: Solve for x
    x = 11,737,634,870.31/122,913.72
  6. Step 6: Final answer
    x = 95,494.91

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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.