Home / 170,955.09-256,295.21-117,488.61

Finding the Fourth Proportional to 170,955.09, 256,295.21 and 117,488.61

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Solution

The fourth proportional to 170,955.09, 256,295.21 and 117,488.61 is: 176,138.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,955.09 : 256,295.21 = 117,488.61 : x
  2. Step 2: Convert to fraction form
    170,955.09/256,295.21 = 117,488.61/x
  3. Step 3: Cross multiply
    170,955.09x = 256,295.21 × 117,488.61
  4. Step 4: Simplify right side
    170,955.09x = 30,111,767,385.12
  5. Step 5: Solve for x
    x = 30,111,767,385.12/170,955.09
  6. Step 6: Final answer
    x = 176,138.47

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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.