Home / 142,513.08-196,675.74-78,853.56

Finding the Fourth Proportional to 142,513.08, 196,675.74 and 78,853.56

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Solution

The fourth proportional to 142,513.08, 196,675.74 and 78,853.56 is: 108,822.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,513.08 : 196,675.74 = 78,853.56 : x
  2. Step 2: Convert to fraction form
    142,513.08/196,675.74 = 78,853.56/x
  3. Step 3: Cross multiply
    142,513.08x = 196,675.74 × 78,853.56
  4. Step 4: Simplify right side
    142,513.08x = 15,508,582,264.63
  5. Step 5: Solve for x
    x = 15,508,582,264.63/142,513.08
  6. Step 6: Final answer
    x = 108,822.17

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.