Home / 155,212.74-214,167.48-91,563.12

Finding the Fourth Proportional to 155,212.74, 214,167.48 and 91,563.12

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Solution

The fourth proportional to 155,212.74, 214,167.48 and 91,563.12 is: 126,341.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,212.74 : 214,167.48 = 91,563.12 : x
  2. Step 2: Convert to fraction form
    155,212.74/214,167.48 = 91,563.12/x
  3. Step 3: Cross multiply
    155,212.74x = 214,167.48 × 91,563.12
  4. Step 4: Simplify right side
    155,212.74x = 19,609,842,671.34
  5. Step 5: Solve for x
    x = 19,609,842,671.34/155,212.74
  6. Step 6: Final answer
    x = 126,341.71

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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.