Home / 142,960.15-197,281.20-82,528.75

Finding the Fourth Proportional to 142,960.15, 197,281.20 and 82,528.75

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Solution

The fourth proportional to 142,960.15, 197,281.20 and 82,528.75 is: 113,887.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,960.15 : 197,281.20 = 82,528.75 : x
  2. Step 2: Convert to fraction form
    142,960.15/197,281.20 = 82,528.75/x
  3. Step 3: Cross multiply
    142,960.15x = 197,281.20 × 82,528.75
  4. Step 4: Simplify right side
    142,960.15x = 16,281,370,834.50
  5. Step 5: Solve for x
    x = 16,281,370,834.50/142,960.15
  6. Step 6: Final answer
    x = 113,887.48

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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.