Home / 156,289.58-215,679.36-84,671.42

Finding the Fourth Proportional to 156,289.58, 215,679.36 and 84,671.42

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Solution

The fourth proportional to 156,289.58, 215,679.36 and 84,671.42 is: 116,846.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,289.58 : 215,679.36 = 84,671.42 : x
  2. Step 2: Convert to fraction form
    156,289.58/215,679.36 = 84,671.42/x
  3. Step 3: Cross multiply
    156,289.58x = 215,679.36 × 84,671.42
  4. Step 4: Simplify right side
    156,289.58x = 18,261,877,675.89
  5. Step 5: Solve for x
    x = 18,261,877,675.89/156,289.58
  6. Step 6: Final answer
    x = 116,846.42

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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.