Home / 117,935.20-176,643.60-71,106.40

Finding the Fourth Proportional to 117,935.20, 176,643.60 and 71,106.40

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Solution

The fourth proportional to 117,935.20, 176,643.60 and 71,106.40 is: 106,503.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,935.20 : 176,643.60 = 71,106.40 : x
  2. Step 2: Convert to fraction form
    117,935.20/176,643.60 = 71,106.40/x
  3. Step 3: Cross multiply
    117,935.20x = 176,643.60 × 71,106.40
  4. Step 4: Simplify right side
    117,935.20x = 12,560,490,479.04
  5. Step 5: Solve for x
    x = 12,560,490,479.04/117,935.20
  6. Step 6: Final answer
    x = 106,503.32

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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.