Home / 142,823.76-197,089.08-79,157.76

Finding the Fourth Proportional to 142,823.76, 197,089.08 and 79,157.76

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Solution

The fourth proportional to 142,823.76, 197,089.08 and 79,157.76 is: 109,233.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,823.76 : 197,089.08 = 79,157.76 : x
  2. Step 2: Convert to fraction form
    142,823.76/197,089.08 = 79,157.76/x
  3. Step 3: Cross multiply
    142,823.76x = 197,089.08 × 79,157.76
  4. Step 4: Simplify right side
    142,823.76x = 15,601,130,093.26
  5. Step 5: Solve for x
    x = 15,601,130,093.26/142,823.76
  6. Step 6: Final answer
    x = 109,233.44

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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.