Home / 91,278.16-136,948.83-65,186.44

Finding the Fourth Proportional to 91,278.16, 136,948.83 and 65,186.44

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Solution

The fourth proportional to 91,278.16, 136,948.83 and 65,186.44 is: 97,802.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,278.16 : 136,948.83 = 65,186.44 : x
  2. Step 2: Convert to fraction form
    91,278.16/136,948.83 = 65,186.44/x
  3. Step 3: Cross multiply
    91,278.16x = 136,948.83 × 65,186.44
  4. Step 4: Simplify right side
    91,278.16x = 8,927,206,689.87
  5. Step 5: Solve for x
    x = 8,927,206,689.87/91,278.16
  6. Step 6: Final answer
    x = 97,802.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.