Home / 142,966.92-197,300.81-79,304.77

Finding the Fourth Proportional to 142,966.92, 197,300.81 and 79,304.77

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Solution

The fourth proportional to 142,966.92, 197,300.81 and 79,304.77 is: 109,444.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,966.92 : 197,300.81 = 79,304.77 : x
  2. Step 2: Convert to fraction form
    142,966.92/197,300.81 = 79,304.77/x
  3. Step 3: Cross multiply
    142,966.92x = 197,300.81 × 79,304.77
  4. Step 4: Simplify right side
    142,966.92x = 15,646,895,802.75
  5. Step 5: Solve for x
    x = 15,646,895,802.75/142,966.92
  6. Step 6: Final answer
    x = 109,444.17

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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.