Home / 122,728.98-169,368.29-71,746.07

Finding the Fourth Proportional to 122,728.98, 169,368.29 and 71,746.07

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Solution

The fourth proportional to 122,728.98, 169,368.29 and 71,746.07 is: 99,010.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,728.98 : 169,368.29 = 71,746.07 : x
  2. Step 2: Convert to fraction form
    122,728.98/169,368.29 = 71,746.07/x
  3. Step 3: Cross multiply
    122,728.98x = 169,368.29 × 71,746.07
  4. Step 4: Simplify right side
    122,728.98x = 12,151,508,522.64
  5. Step 5: Solve for x
    x = 12,151,508,522.64/122,728.98
  6. Step 6: Final answer
    x = 99,010.91

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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.