Home / 156,984.23-235,484.51-51,811.40

Finding the Fourth Proportional to 156,984.23, 235,484.51 and 51,811.40

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Solution

The fourth proportional to 156,984.23, 235,484.51 and 51,811.40 is: 77,719.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,984.23 : 235,484.51 = 51,811.40 : x
  2. Step 2: Convert to fraction form
    156,984.23/235,484.51 = 51,811.40/x
  3. Step 3: Cross multiply
    156,984.23x = 235,484.51 × 51,811.40
  4. Step 4: Simplify right side
    156,984.23x = 12,200,782,141.41
  5. Step 5: Solve for x
    x = 12,200,782,141.41/156,984.23
  6. Step 6: Final answer
    x = 77,719.79

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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.