Home / 142,746.07-196,981.81-79,080.07

Finding the Fourth Proportional to 142,746.07, 196,981.81 and 79,080.07

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Solution

The fourth proportional to 142,746.07, 196,981.81 and 79,080.07 is: 109,126.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,746.07 : 196,981.81 = 79,080.07 : x
  2. Step 2: Convert to fraction form
    142,746.07/196,981.81 = 79,080.07/x
  3. Step 3: Cross multiply
    142,746.07x = 196,981.81 × 79,080.07
  4. Step 4: Simplify right side
    142,746.07x = 15,577,335,323.53
  5. Step 5: Solve for x
    x = 15,577,335,323.53/142,746.07
  6. Step 6: Final answer
    x = 109,126.19

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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.