Home / 140,233.16-193,522-76,569.60

Finding the Fourth Proportional to 140,233.16, 193,522 and 76,569.60

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Solution

The fourth proportional to 140,233.16, 193,522 and 76,569.60 is: 105,666.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,233.16 : 193,522 = 76,569.60 : x
  2. Step 2: Convert to fraction form
    140,233.16/193,522 = 76,569.60/x
  3. Step 3: Cross multiply
    140,233.16x = 193,522 × 76,569.60
  4. Step 4: Simplify right side
    140,233.16x = 14,817,902,131.20
  5. Step 5: Solve for x
    x = 14,817,902,131.20/140,233.16
  6. Step 6: Final answer
    x = 105,666.18

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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.