Home / 155,426.25-214,496.10-91,762.68

Finding the Fourth Proportional to 155,426.25, 214,496.10 and 91,762.68

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Solution

The fourth proportional to 155,426.25, 214,496.10 and 91,762.68 is: 126,637.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,426.25 : 214,496.10 = 91,762.68 : x
  2. Step 2: Convert to fraction form
    155,426.25/214,496.10 = 91,762.68/x
  3. Step 3: Cross multiply
    155,426.25x = 214,496.10 × 91,762.68
  4. Step 4: Simplify right side
    155,426.25x = 19,682,736,985.55
  5. Step 5: Solve for x
    x = 19,682,736,985.55/155,426.25
  6. Step 6: Final answer
    x = 126,637.15

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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.