Home / 113,509.96-156,654.79-84,779.73

Finding the Fourth Proportional to 113,509.96, 156,654.79 and 84,779.73

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Solution

The fourth proportional to 113,509.96, 156,654.79 and 84,779.73 is: 117,004.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,509.96 : 156,654.79 = 84,779.73 : x
  2. Step 2: Convert to fraction form
    113,509.96/156,654.79 = 84,779.73/x
  3. Step 3: Cross multiply
    113,509.96x = 156,654.79 × 84,779.73
  4. Step 4: Simplify right side
    113,509.96x = 13,281,150,587.46
  5. Step 5: Solve for x
    x = 13,281,150,587.46/113,509.96
  6. Step 6: Final answer
    x = 117,004.28

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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.