Home / 142,946.58-197,289.90-79,304.88

Finding the Fourth Proportional to 142,946.58, 197,289.90 and 79,304.88

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Solution

The fourth proportional to 142,946.58, 197,289.90 and 79,304.88 is: 109,453.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,946.58 : 197,289.90 = 79,304.88 : x
  2. Step 2: Convert to fraction form
    142,946.58/197,289.90 = 79,304.88/x
  3. Step 3: Cross multiply
    142,946.58x = 197,289.90 × 79,304.88
  4. Step 4: Simplify right side
    142,946.58x = 15,646,051,844.71
  5. Step 5: Solve for x
    x = 15,646,051,844.71/142,946.58
  6. Step 6: Final answer
    x = 109,453.84

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1.5x scale

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.