Home / 155,423.92-214,484.67-87,440.94

Finding the Fourth Proportional to 155,423.92, 214,484.67 and 87,440.94

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Solution

The fourth proportional to 155,423.92, 214,484.67 and 87,440.94 is: 120,668.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,423.92 : 214,484.67 = 87,440.94 : x
  2. Step 2: Convert to fraction form
    155,423.92/214,484.67 = 87,440.94/x
  3. Step 3: Cross multiply
    155,423.92x = 214,484.67 × 87,440.94
  4. Step 4: Simplify right side
    155,423.92x = 18,754,740,087.97
  5. Step 5: Solve for x
    x = 18,754,740,087.97/155,423.92
  6. Step 6: Final answer
    x = 120,668.30

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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.