Home / 122,681.93-169,289.39-71,706.60

Finding the Fourth Proportional to 122,681.93, 169,289.39 and 71,706.60

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Solution

The fourth proportional to 122,681.93, 169,289.39 and 71,706.60 is: 98,948.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,681.93 : 169,289.39 = 71,706.60 : x
  2. Step 2: Convert to fraction form
    122,681.93/169,289.39 = 71,706.60/x
  3. Step 3: Cross multiply
    122,681.93x = 169,289.39 × 71,706.60
  4. Step 4: Simplify right side
    122,681.93x = 12,139,166,752.24
  5. Step 5: Solve for x
    x = 12,139,166,752.24/122,681.93
  6. Step 6: Final answer
    x = 98,948.29

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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.