Home / 123,416.51-170,327.36-88,989.56

Finding the Fourth Proportional to 123,416.51, 170,327.36 and 88,989.56

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Solution

The fourth proportional to 123,416.51, 170,327.36 and 88,989.56 is: 122,814.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,416.51 : 170,327.36 = 88,989.56 : x
  2. Step 2: Convert to fraction form
    123,416.51/170,327.36 = 88,989.56/x
  3. Step 3: Cross multiply
    123,416.51x = 170,327.36 × 88,989.56
  4. Step 4: Simplify right side
    123,416.51x = 15,157,356,810.41
  5. Step 5: Solve for x
    x = 15,157,356,810.41/123,416.51
  6. Step 6: Final answer
    x = 122,814.66

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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.