Home / 117,427.15-176,065.80-77,399.92

Finding the Fourth Proportional to 117,427.15, 176,065.80 and 77,399.92

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Solution

The fourth proportional to 117,427.15, 176,065.80 and 77,399.92 is: 116,050.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,427.15 : 176,065.80 = 77,399.92 : x
  2. Step 2: Convert to fraction form
    117,427.15/176,065.80 = 77,399.92/x
  3. Step 3: Cross multiply
    117,427.15x = 176,065.80 × 77,399.92
  4. Step 4: Simplify right side
    117,427.15x = 13,627,478,834.74
  5. Step 5: Solve for x
    x = 13,627,478,834.74/117,427.15
  6. Step 6: Final answer
    x = 116,050.49

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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.