Home / 142,332.57-196,341.21-91,288.51

Finding the Fourth Proportional to 142,332.57, 196,341.21 and 91,288.51

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Solution

The fourth proportional to 142,332.57, 196,341.21 and 91,288.51 is: 125,928.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,332.57 : 196,341.21 = 91,288.51 : x
  2. Step 2: Convert to fraction form
    142,332.57/196,341.21 = 91,288.51/x
  3. Step 3: Cross multiply
    142,332.57x = 196,341.21 × 91,288.51
  4. Step 4: Simplify right side
    142,332.57x = 17,923,696,512.50
  5. Step 5: Solve for x
    x = 17,923,696,512.50/142,332.57
  6. Step 6: Final answer
    x = 125,928.29

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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.