Home / 115,764.48-159,580.80-90,570.24

Finding the Fourth Proportional to 115,764.48, 159,580.80 and 90,570.24

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Solution

The fourth proportional to 115,764.48, 159,580.80 and 90,570.24 is: 124,850.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,764.48 : 159,580.80 = 90,570.24 : x
  2. Step 2: Convert to fraction form
    115,764.48/159,580.80 = 90,570.24/x
  3. Step 3: Cross multiply
    115,764.48x = 159,580.80 × 90,570.24
  4. Step 4: Simplify right side
    115,764.48x = 14,453,271,355.39
  5. Step 5: Solve for x
    x = 14,453,271,355.39/115,764.48
  6. Step 6: Final answer
    x = 124,850.66

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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.