Home / 156,740.40-235,110.60-56,903.85

Finding the Fourth Proportional to 156,740.40, 235,110.60 and 56,903.85

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Solution

The fourth proportional to 156,740.40, 235,110.60 and 56,903.85 is: 85,355.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,740.40 : 235,110.60 = 56,903.85 : x
  2. Step 2: Convert to fraction form
    156,740.40/235,110.60 = 56,903.85/x
  3. Step 3: Cross multiply
    156,740.40x = 235,110.60 × 56,903.85
  4. Step 4: Simplify right side
    156,740.40x = 13,378,698,315.81
  5. Step 5: Solve for x
    x = 13,378,698,315.81/156,740.40
  6. Step 6: Final answer
    x = 85,355.78

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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.