Home / 117,647.15-176,392.71-42,758.40

Finding the Fourth Proportional to 117,647.15, 176,392.71 and 42,758.40

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Solution

The fourth proportional to 117,647.15, 176,392.71 and 42,758.40 is: 64,109.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,647.15 : 176,392.71 = 42,758.40 : x
  2. Step 2: Convert to fraction form
    117,647.15/176,392.71 = 42,758.40/x
  3. Step 3: Cross multiply
    117,647.15x = 176,392.71 × 42,758.40
  4. Step 4: Simplify right side
    117,647.15x = 7,542,269,840.79
  5. Step 5: Solve for x
    x = 7,542,269,840.79/117,647.15
  6. Step 6: Final answer
    x = 64,109.24

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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.