Home / 118,108.09-162,986.97-64,393.57

Finding the Fourth Proportional to 118,108.09, 162,986.97 and 64,393.57

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Solution

The fourth proportional to 118,108.09, 162,986.97 and 64,393.57 is: 88,861.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,108.09 : 162,986.97 = 64,393.57 : x
  2. Step 2: Convert to fraction form
    118,108.09/162,986.97 = 64,393.57/x
  3. Step 3: Cross multiply
    118,108.09x = 162,986.97 × 64,393.57
  4. Step 4: Simplify right side
    118,108.09x = 10,495,312,861.78
  5. Step 5: Solve for x
    x = 10,495,312,861.78/118,108.09
  6. Step 6: Final answer
    x = 88,861.93

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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.