Home / 135,641.08-187,184.64-75,216.16

Finding the Fourth Proportional to 135,641.08, 187,184.64 and 75,216.16

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Solution

The fourth proportional to 135,641.08, 187,184.64 and 75,216.16 is: 103,798.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,641.08 : 187,184.64 = 75,216.16 : x
  2. Step 2: Convert to fraction form
    135,641.08/187,184.64 = 75,216.16/x
  3. Step 3: Cross multiply
    135,641.08x = 187,184.64 × 75,216.16
  4. Step 4: Simplify right side
    135,641.08x = 14,079,309,831.78
  5. Step 5: Solve for x
    x = 14,079,309,831.78/135,641.08
  6. Step 6: Final answer
    x = 103,798.27

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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.