Home / 135,831.07-187,445.23-75,402.19

Finding the Fourth Proportional to 135,831.07, 187,445.23 and 75,402.19

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Solution

The fourth proportional to 135,831.07, 187,445.23 and 75,402.19 is: 104,054.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,831.07 : 187,445.23 = 75,402.19 : x
  2. Step 2: Convert to fraction form
    135,831.07/187,445.23 = 75,402.19/x
  3. Step 3: Cross multiply
    135,831.07x = 187,445.23 × 75,402.19
  4. Step 4: Simplify right side
    135,831.07x = 14,133,780,847.05
  5. Step 5: Solve for x
    x = 14,133,780,847.05/135,831.07
  6. Step 6: Final answer
    x = 104,054.11

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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.