Home / 130,831.52-196,082.71-70,857.63

Finding the Fourth Proportional to 130,831.52, 196,082.71 and 70,857.63

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Solution

The fourth proportional to 130,831.52, 196,082.71 and 70,857.63 is: 106,197.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,831.52 : 196,082.71 = 70,857.63 : x
  2. Step 2: Convert to fraction form
    130,831.52/196,082.71 = 70,857.63/x
  3. Step 3: Cross multiply
    130,831.52x = 196,082.71 × 70,857.63
  4. Step 4: Simplify right side
    130,831.52x = 13,893,955,937.43
  5. Step 5: Solve for x
    x = 13,893,955,937.43/130,831.52
  6. Step 6: Final answer
    x = 106,197.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.