Home / 142,927.61-197,235.13-79,271.33

Finding the Fourth Proportional to 142,927.61, 197,235.13 and 79,271.33

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Solution

The fourth proportional to 142,927.61, 197,235.13 and 79,271.33 is: 109,391.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,927.61 : 197,235.13 = 79,271.33 : x
  2. Step 2: Convert to fraction form
    142,927.61/197,235.13 = 79,271.33/x
  3. Step 3: Cross multiply
    142,927.61x = 197,235.13 × 79,271.33
  4. Step 4: Simplify right side
    142,927.61x = 15,635,091,077.82
  5. Step 5: Solve for x
    x = 15,635,091,077.82/142,927.61
  6. Step 6: Final answer
    x = 109,391.68

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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.