Home / 142,967.04-197,293.12-79,303.20

Finding the Fourth Proportional to 142,967.04, 197,293.12 and 79,303.20

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Solution

The fourth proportional to 142,967.04, 197,293.12 and 79,303.20 is: 109,437.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,967.04 : 197,293.12 = 79,303.20 : x
  2. Step 2: Convert to fraction form
    142,967.04/197,293.12 = 79,303.20/x
  3. Step 3: Cross multiply
    142,967.04x = 197,293.12 × 79,303.20
  4. Step 4: Simplify right side
    142,967.04x = 15,645,975,753.98
  5. Step 5: Solve for x
    x = 15,645,975,753.98/142,967.04
  6. Step 6: Final answer
    x = 109,437.64

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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.