Home / 135,570.96-187,088.32-75,142.60

Finding the Fourth Proportional to 135,570.96, 187,088.32 and 75,142.60

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Solution

The fourth proportional to 135,570.96, 187,088.32 and 75,142.60 is: 103,697.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,570.96 : 187,088.32 = 75,142.60 : x
  2. Step 2: Convert to fraction form
    135,570.96/187,088.32 = 75,142.60/x
  3. Step 3: Cross multiply
    135,570.96x = 187,088.32 × 75,142.60
  4. Step 4: Simplify right side
    135,570.96x = 14,058,302,794.43
  5. Step 5: Solve for x
    x = 14,058,302,794.43/135,570.96
  6. Step 6: Final answer
    x = 103,697.01

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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.