Home / 156,938.40-235,435.80-57,238.46

Finding the Fourth Proportional to 156,938.40, 235,435.80 and 57,238.46

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Solution

The fourth proportional to 156,938.40, 235,435.80 and 57,238.46 is: 85,867.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,938.40 : 235,435.80 = 57,238.46 : x
  2. Step 2: Convert to fraction form
    156,938.40/235,435.80 = 57,238.46/x
  3. Step 3: Cross multiply
    156,938.40x = 235,435.80 × 57,238.46
  4. Step 4: Simplify right side
    156,938.40x = 13,475,982,620.87
  5. Step 5: Solve for x
    x = 13,475,982,620.87/156,938.40
  6. Step 6: Final answer
    x = 85,867.98

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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.