Home / 124,177.84-171,369.14-76,458.72

Finding the Fourth Proportional to 124,177.84, 171,369.14 and 76,458.72

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Solution

The fourth proportional to 124,177.84, 171,369.14 and 76,458.72 is: 105,515.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,177.84 : 171,369.14 = 76,458.72 : x
  2. Step 2: Convert to fraction form
    124,177.84/171,369.14 = 76,458.72/x
  3. Step 3: Cross multiply
    124,177.84x = 171,369.14 × 76,458.72
  4. Step 4: Simplify right side
    124,177.84x = 13,102,665,091.90
  5. Step 5: Solve for x
    x = 13,102,665,091.90/124,177.84
  6. Step 6: Final answer
    x = 105,515.32

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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.