Home / 142,590.20-196,779.12-82,156.16

Finding the Fourth Proportional to 142,590.20, 196,779.12 and 82,156.16

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Solution

The fourth proportional to 142,590.20, 196,779.12 and 82,156.16 is: 113,378.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,590.20 : 196,779.12 = 82,156.16 : x
  2. Step 2: Convert to fraction form
    142,590.20/196,779.12 = 82,156.16/x
  3. Step 3: Cross multiply
    142,590.20x = 196,779.12 × 82,156.16
  4. Step 4: Simplify right side
    142,590.20x = 16,166,616,867.38
  5. Step 5: Solve for x
    x = 16,166,616,867.38/142,590.20
  6. Step 6: Final answer
    x = 113,378.18

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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.