Home / 155,555.22-214,214.16-135,127.94

Finding the Fourth Proportional to 155,555.22, 214,214.16 and 135,127.94

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Solution

The fourth proportional to 155,555.22, 214,214.16 and 135,127.94 is: 186,083.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,555.22 : 214,214.16 = 135,127.94 : x
  2. Step 2: Convert to fraction form
    155,555.22/214,214.16 = 135,127.94/x
  3. Step 3: Cross multiply
    155,555.22x = 214,214.16 × 135,127.94
  4. Step 4: Simplify right side
    155,555.22x = 28,946,317,088.56
  5. Step 5: Solve for x
    x = 28,946,317,088.56/155,555.22
  6. Step 6: Final answer
    x = 186,083.87

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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.