Home / 155,377.01-214,426.67-87,397.15

Finding the Fourth Proportional to 155,377.01, 214,426.67 and 87,397.15

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Solution

The fourth proportional to 155,377.01, 214,426.67 and 87,397.15 is: 120,611.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,377.01 : 214,426.67 = 87,397.15 : x
  2. Step 2: Convert to fraction form
    155,377.01/214,426.67 = 87,397.15/x
  3. Step 3: Cross multiply
    155,377.01x = 214,426.67 × 87,397.15
  4. Step 4: Simplify right side
    155,377.01x = 18,740,279,841.99
  5. Step 5: Solve for x
    x = 18,740,279,841.99/155,377.01
  6. Step 6: Final answer
    x = 120,611.66

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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.