Home / 155,435.12-214,498.95-86,523.49

Finding the Fourth Proportional to 155,435.12, 214,498.95 and 86,523.49

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Solution

The fourth proportional to 155,435.12, 214,498.95 and 86,523.49 is: 119,401.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,435.12 : 214,498.95 = 86,523.49 : x
  2. Step 2: Convert to fraction form
    155,435.12/214,498.95 = 86,523.49/x
  3. Step 3: Cross multiply
    155,435.12x = 214,498.95 × 86,523.49
  4. Step 4: Simplify right side
    155,435.12x = 18,559,197,219.09
  5. Step 5: Solve for x
    x = 18,559,197,219.09/155,435.12
  6. Step 6: Final answer
    x = 119,401.57

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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.