Home / 156,939.40-235,437.30-57,239.46

Finding the Fourth Proportional to 156,939.40, 235,437.30 and 57,239.46

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Solution

The fourth proportional to 156,939.40, 235,437.30 and 57,239.46 is: 85,869.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,939.40 : 235,437.30 = 57,239.46 : x
  2. Step 2: Convert to fraction form
    156,939.40/235,437.30 = 57,239.46/x
  3. Step 3: Cross multiply
    156,939.40x = 235,437.30 × 57,239.46
  4. Step 4: Simplify right side
    156,939.40x = 13,476,303,915.86
  5. Step 5: Solve for x
    x = 13,476,303,915.86/156,939.40
  6. Step 6: Final answer
    x = 85,869.48

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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.