Home / 156,977.40-235,379.70-51,742.20

Finding the Fourth Proportional to 156,977.40, 235,379.70 and 51,742.20

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Solution

The fourth proportional to 156,977.40, 235,379.70 and 51,742.20 is: 77,584.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,977.40 : 235,379.70 = 51,742.20 : x
  2. Step 2: Convert to fraction form
    156,977.40/235,379.70 = 51,742.20/x
  3. Step 3: Cross multiply
    156,977.40x = 235,379.70 × 51,742.20
  4. Step 4: Simplify right side
    156,977.40x = 12,179,063,513.34
  5. Step 5: Solve for x
    x = 12,179,063,513.34/156,977.40
  6. Step 6: Final answer
    x = 77,584.82

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1.5x scale

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.