Home / 118,106.12-162,986.28-64,391.06

Finding the Fourth Proportional to 118,106.12, 162,986.28 and 64,391.06

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Solution

The fourth proportional to 118,106.12, 162,986.28 and 64,391.06 is: 88,859.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,106.12 : 162,986.28 = 64,391.06 : x
  2. Step 2: Convert to fraction form
    118,106.12/162,986.28 = 64,391.06/x
  3. Step 3: Cross multiply
    118,106.12x = 162,986.28 × 64,391.06
  4. Step 4: Simplify right side
    118,106.12x = 10,494,859,334.66
  5. Step 5: Solve for x
    x = 10,494,859,334.66/118,106.12
  6. Step 6: Final answer
    x = 88,859.57

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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.