Home / 156,108.45-215,430.30-84,488.46

Finding the Fourth Proportional to 156,108.45, 215,430.30 and 84,488.46

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Solution

The fourth proportional to 156,108.45, 215,430.30 and 84,488.46 is: 116,594.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,108.45 : 215,430.30 = 84,488.46 : x
  2. Step 2: Convert to fraction form
    156,108.45/215,430.30 = 84,488.46/x
  3. Step 3: Cross multiply
    156,108.45x = 215,430.30 × 84,488.46
  4. Step 4: Simplify right side
    156,108.45x = 18,201,374,284.34
  5. Step 5: Solve for x
    x = 18,201,374,284.34/156,108.45
  6. Step 6: Final answer
    x = 116,594.42

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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.