Home / 122,812.02-169,466.85-69,115.50

Finding the Fourth Proportional to 122,812.02, 169,466.85 and 69,115.50

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Solution

The fourth proportional to 122,812.02, 169,466.85 and 69,115.50 is: 95,371.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,812.02 : 169,466.85 = 69,115.50 : x
  2. Step 2: Convert to fraction form
    122,812.02/169,466.85 = 69,115.50/x
  3. Step 3: Cross multiply
    122,812.02x = 169,466.85 × 69,115.50
  4. Step 4: Simplify right side
    122,812.02x = 11,712,786,071.18
  5. Step 5: Solve for x
    x = 11,712,786,071.18/122,812.02
  6. Step 6: Final answer
    x = 95,371.66

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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.