Home / 122,586.63-169,130.66-74,816.07

Finding the Fourth Proportional to 122,586.63, 169,130.66 and 74,816.07

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Solution

The fourth proportional to 122,586.63, 169,130.66 and 74,816.07 is: 103,222.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,586.63 : 169,130.66 = 74,816.07 : x
  2. Step 2: Convert to fraction form
    122,586.63/169,130.66 = 74,816.07/x
  3. Step 3: Cross multiply
    122,586.63x = 169,130.66 × 74,816.07
  4. Step 4: Simplify right side
    122,586.63x = 12,653,691,297.71
  5. Step 5: Solve for x
    x = 12,653,691,297.71/122,586.63
  6. Step 6: Final answer
    x = 103,222.44

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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.