Home / 215,012.67-296,723.18-118,220.57

Finding the Fourth Proportional to 215,012.67, 296,723.18 and 118,220.57

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Solution

The fourth proportional to 215,012.67, 296,723.18 and 118,220.57 is: 163,147.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,012.67 : 296,723.18 = 118,220.57 : x
  2. Step 2: Convert to fraction form
    215,012.67/296,723.18 = 118,220.57/x
  3. Step 3: Cross multiply
    215,012.67x = 296,723.18 × 118,220.57
  4. Step 4: Simplify right side
    215,012.67x = 35,078,782,880.71
  5. Step 5: Solve for x
    x = 35,078,782,880.71/215,012.67
  6. Step 6: Final answer
    x = 163,147.52

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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.