Home / 156,979.23-235,477.01-51,806.40

Finding the Fourth Proportional to 156,979.23, 235,477.01 and 51,806.40

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Solution

The fourth proportional to 156,979.23, 235,477.01 and 51,806.40 is: 77,712.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,979.23 : 235,477.01 = 51,806.40 : x
  2. Step 2: Convert to fraction form
    156,979.23/235,477.01 = 51,806.40/x
  3. Step 3: Cross multiply
    156,979.23x = 235,477.01 × 51,806.40
  4. Step 4: Simplify right side
    156,979.23x = 12,199,216,170.86
  5. Step 5: Solve for x
    x = 12,199,216,170.86/156,979.23
  6. Step 6: Final answer
    x = 77,712.29

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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.