Home / 114,950.36-158,704.38-78,712.45

Finding the Fourth Proportional to 114,950.36, 158,704.38 and 78,712.45

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Solution

The fourth proportional to 114,950.36, 158,704.38 and 78,712.45 is: 108,673.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,950.36 : 158,704.38 = 78,712.45 : x
  2. Step 2: Convert to fraction form
    114,950.36/158,704.38 = 78,712.45/x
  3. Step 3: Cross multiply
    114,950.36x = 158,704.38 × 78,712.45
  4. Step 4: Simplify right side
    114,950.36x = 12,492,010,178.77
  5. Step 5: Solve for x
    x = 12,492,010,178.77/114,950.36
  6. Step 6: Final answer
    x = 108,673.08

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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.