Home / 122,938.16-169,649.98-68,489.01

Finding the Fourth Proportional to 122,938.16, 169,649.98 and 68,489.01

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Solution

The fourth proportional to 122,938.16, 169,649.98 and 68,489.01 is: 94,512.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,938.16 : 169,649.98 = 68,489.01 : x
  2. Step 2: Convert to fraction form
    122,938.16/169,649.98 = 68,489.01/x
  3. Step 3: Cross multiply
    122,938.16x = 169,649.98 × 68,489.01
  4. Step 4: Simplify right side
    122,938.16x = 11,619,159,005.50
  5. Step 5: Solve for x
    x = 11,619,159,005.50/122,938.16
  6. Step 6: Final answer
    x = 94,512.23

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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.