Home / 156,686.70-235,159.65-72,576.30

Finding the Fourth Proportional to 156,686.70, 235,159.65 and 72,576.30

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Solution

The fourth proportional to 156,686.70, 235,159.65 and 72,576.30 is: 108,924.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,686.70 : 235,159.65 = 72,576.30 : x
  2. Step 2: Convert to fraction form
    156,686.70/235,159.65 = 72,576.30/x
  3. Step 3: Cross multiply
    156,686.70x = 235,159.65 × 72,576.30
  4. Step 4: Simplify right side
    156,686.70x = 17,067,017,306.30
  5. Step 5: Solve for x
    x = 17,067,017,306.30/156,686.70
  6. Step 6: Final answer
    x = 108,924.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.