Home / 155,425.75-214,495.41-91,762.18

Finding the Fourth Proportional to 155,425.75, 214,495.41 and 91,762.18

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Solution

The fourth proportional to 155,425.75, 214,495.41 and 91,762.18 is: 126,636.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,425.75 : 214,495.41 = 91,762.18 : x
  2. Step 2: Convert to fraction form
    155,425.75/214,495.41 = 91,762.18/x
  3. Step 3: Cross multiply
    155,425.75x = 214,495.41 × 91,762.18
  4. Step 4: Simplify right side
    155,425.75x = 19,682,566,421.59
  5. Step 5: Solve for x
    x = 19,682,566,421.59/155,425.75
  6. Step 6: Final answer
    x = 126,636.46

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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.