Home / 142,366.24-196,457.70-78,699.94

Finding the Fourth Proportional to 142,366.24, 196,457.70 and 78,699.94

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Solution

The fourth proportional to 142,366.24, 196,457.70 and 78,699.94 is: 108,601.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,366.24 : 196,457.70 = 78,699.94 : x
  2. Step 2: Convert to fraction form
    142,366.24/196,457.70 = 78,699.94/x
  3. Step 3: Cross multiply
    142,366.24x = 196,457.70 × 78,699.94
  4. Step 4: Simplify right side
    142,366.24x = 15,461,209,006.52
  5. Step 5: Solve for x
    x = 15,461,209,006.52/142,366.24
  6. Step 6: Final answer
    x = 108,601.65

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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.