Home / 99,389.03-137,187.68-61,160.27

Finding the Fourth Proportional to 99,389.03, 137,187.68 and 61,160.27

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Solution

The fourth proportional to 99,389.03, 137,187.68 and 61,160.27 is: 84,420.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,389.03 : 137,187.68 = 61,160.27 : x
  2. Step 2: Convert to fraction form
    99,389.03/137,187.68 = 61,160.27/x
  3. Step 3: Cross multiply
    99,389.03x = 137,187.68 × 61,160.27
  4. Step 4: Simplify right side
    99,389.03x = 8,390,434,557.73
  5. Step 5: Solve for x
    x = 8,390,434,557.73/99,389.03
  6. Step 6: Final answer
    x = 84,420.13

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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.