Home / 134,831.50-186,067.32-74,402.12

Finding the Fourth Proportional to 134,831.50, 186,067.32 and 74,402.12

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Solution

The fourth proportional to 134,831.50, 186,067.32 and 74,402.12 is: 102,674.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,831.50 : 186,067.32 = 74,402.12 : x
  2. Step 2: Convert to fraction form
    134,831.50/186,067.32 = 74,402.12/x
  3. Step 3: Cross multiply
    134,831.50x = 186,067.32 × 74,402.12
  4. Step 4: Simplify right side
    134,831.50x = 13,843,803,070.72
  5. Step 5: Solve for x
    x = 13,843,803,070.72/134,831.50
  6. Step 6: Final answer
    x = 102,674.84

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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.