Home / 142,895.08-197,201.52-79,228.84

Finding the Fourth Proportional to 142,895.08, 197,201.52 and 79,228.84

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Solution

The fourth proportional to 142,895.08, 197,201.52 and 79,228.84 is: 109,339.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,895.08 : 197,201.52 = 79,228.84 : x
  2. Step 2: Convert to fraction form
    142,895.08/197,201.52 = 79,228.84/x
  3. Step 3: Cross multiply
    142,895.08x = 197,201.52 × 79,228.84
  4. Step 4: Simplify right side
    142,895.08x = 15,624,047,675.84
  5. Step 5: Solve for x
    x = 15,624,047,675.84/142,895.08
  6. Step 6: Final answer
    x = 109,339.30

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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.