Home / 117,717.20-176,345.40-70,830.80

Finding the Fourth Proportional to 117,717.20, 176,345.40 and 70,830.80

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Solution

The fourth proportional to 117,717.20, 176,345.40 and 70,830.80 is: 106,107.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,717.20 : 176,345.40 = 70,830.80 : x
  2. Step 2: Convert to fraction form
    117,717.20/176,345.40 = 70,830.80/x
  3. Step 3: Cross multiply
    117,717.20x = 176,345.40 × 70,830.80
  4. Step 4: Simplify right side
    117,717.20x = 12,490,685,758.32
  5. Step 5: Solve for x
    x = 12,490,685,758.32/117,717.20
  6. Step 6: Final answer
    x = 106,107.57

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1.5x scale

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.