Home / 156,783.64-235,194.90-51,639.16

Finding the Fourth Proportional to 156,783.64, 235,194.90 and 51,639.16

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Solution

The fourth proportional to 156,783.64, 235,194.90 and 51,639.16 is: 77,465.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,783.64 : 235,194.90 = 51,639.16 : x
  2. Step 2: Convert to fraction form
    156,783.64/235,194.90 = 51,639.16/x
  3. Step 3: Cross multiply
    156,783.64x = 235,194.90 × 51,639.16
  4. Step 4: Simplify right side
    156,783.64x = 12,145,267,072.28
  5. Step 5: Solve for x
    x = 12,145,267,072.28/156,783.64
  6. Step 6: Final answer
    x = 77,465.14

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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.