Home / 142,334.13-196,417.67-77,800.46

Finding the Fourth Proportional to 142,334.13, 196,417.67 and 77,800.46

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Solution

The fourth proportional to 142,334.13, 196,417.67 and 77,800.46 is: 107,362.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,334.13 : 196,417.67 = 77,800.46 : x
  2. Step 2: Convert to fraction form
    142,334.13/196,417.67 = 77,800.46/x
  3. Step 3: Cross multiply
    142,334.13x = 196,417.67 × 77,800.46
  4. Step 4: Simplify right side
    142,334.13x = 15,281,385,078.13
  5. Step 5: Solve for x
    x = 15,281,385,078.13/142,334.13
  6. Step 6: Final answer
    x = 107,362.76

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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.