Home / 135,533.86-187,014.02-90,279.36

Finding the Fourth Proportional to 135,533.86, 187,014.02 and 90,279.36

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Solution

The fourth proportional to 135,533.86, 187,014.02 and 90,279.36 is: 124,570.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,533.86 : 187,014.02 = 90,279.36 : x
  2. Step 2: Convert to fraction form
    135,533.86/187,014.02 = 90,279.36/x
  3. Step 3: Cross multiply
    135,533.86x = 187,014.02 × 90,279.36
  4. Step 4: Simplify right side
    135,533.86x = 16,883,505,585.23
  5. Step 5: Solve for x
    x = 16,883,505,585.23/135,533.86
  6. Step 6: Final answer
    x = 124,570.39

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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.