Home / 156,749.40-235,124.10-51,571.80

Finding the Fourth Proportional to 156,749.40, 235,124.10 and 51,571.80

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Solution

The fourth proportional to 156,749.40, 235,124.10 and 51,571.80 is: 77,357.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,749.40 : 235,124.10 = 51,571.80 : x
  2. Step 2: Convert to fraction form
    156,749.40/235,124.10 = 51,571.80/x
  3. Step 3: Cross multiply
    156,749.40x = 235,124.10 × 51,571.80
  4. Step 4: Simplify right side
    156,749.40x = 12,125,773,060.38
  5. Step 5: Solve for x
    x = 12,125,773,060.38/156,749.40
  6. Step 6: Final answer
    x = 77,357.70

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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.