Home / 155,360.72-214,365.65-90,817.49

Finding the Fourth Proportional to 155,360.72, 214,365.65 and 90,817.49

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Solution

The fourth proportional to 155,360.72, 214,365.65 and 90,817.49 is: 125,309.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,360.72 : 214,365.65 = 90,817.49 : x
  2. Step 2: Convert to fraction form
    155,360.72/214,365.65 = 90,817.49/x
  3. Step 3: Cross multiply
    155,360.72x = 214,365.65 × 90,817.49
  4. Step 4: Simplify right side
    155,360.72x = 19,468,150,275.22
  5. Step 5: Solve for x
    x = 19,468,150,275.22/155,360.72
  6. Step 6: Final answer
    x = 125,309.35

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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.