Home / 99,699.14-137,597.20-57,256.76

Finding the Fourth Proportional to 99,699.14, 137,597.20 and 57,256.76

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Solution

The fourth proportional to 99,699.14, 137,597.20 and 57,256.76 is: 79,021.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,699.14 : 137,597.20 = 57,256.76 : x
  2. Step 2: Convert to fraction form
    99,699.14/137,597.20 = 57,256.76/x
  3. Step 3: Cross multiply
    99,699.14x = 137,597.20 × 57,256.76
  4. Step 4: Simplify right side
    99,699.14x = 7,878,369,857.07
  5. Step 5: Solve for x
    x = 7,878,369,857.07/99,699.14
  6. Step 6: Final answer
    x = 79,021.44

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1.5x scale

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.