Home / 98,933.88-136,535.40-55,898.46

Finding the Fourth Proportional to 98,933.88, 136,535.40 and 55,898.46

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Solution

The fourth proportional to 98,933.88, 136,535.40 and 55,898.46 is: 77,143.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,933.88 : 136,535.40 = 55,898.46 : x
  2. Step 2: Convert to fraction form
    98,933.88/136,535.40 = 55,898.46/x
  3. Step 3: Cross multiply
    98,933.88x = 136,535.40 × 55,898.46
  4. Step 4: Simplify right side
    98,933.88x = 7,632,118,595.48
  5. Step 5: Solve for x
    x = 7,632,118,595.48/98,933.88
  6. Step 6: Final answer
    x = 77,143.63

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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.