Home / 156,965.40-235,361.70-51,730.20

Finding the Fourth Proportional to 156,965.40, 235,361.70 and 51,730.20

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Solution

The fourth proportional to 156,965.40, 235,361.70 and 51,730.20 is: 77,566.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,965.40 : 235,361.70 = 51,730.20 : x
  2. Step 2: Convert to fraction form
    156,965.40/235,361.70 = 51,730.20/x
  3. Step 3: Cross multiply
    156,965.40x = 235,361.70 × 51,730.20
  4. Step 4: Simplify right side
    156,965.40x = 12,175,307,813.34
  5. Step 5: Solve for x
    x = 12,175,307,813.34/156,965.40
  6. Step 6: Final answer
    x = 77,566.83

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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.