Home / 115,189.08-158,941.66-64,190.63

Finding the Fourth Proportional to 115,189.08, 158,941.66 and 64,190.63

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Solution

The fourth proportional to 115,189.08, 158,941.66 and 64,190.63 is: 88,572.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,189.08 : 158,941.66 = 64,190.63 : x
  2. Step 2: Convert to fraction form
    115,189.08/158,941.66 = 64,190.63/x
  3. Step 3: Cross multiply
    115,189.08x = 158,941.66 × 64,190.63
  4. Step 4: Simplify right side
    115,189.08x = 10,202,564,967.69
  5. Step 5: Solve for x
    x = 10,202,564,967.69/115,189.08
  6. Step 6: Final answer
    x = 88,572.33

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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.