Home / 156,784.64-235,196.40-51,640.16

Finding the Fourth Proportional to 156,784.64, 235,196.40 and 51,640.16

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Solution

The fourth proportional to 156,784.64, 235,196.40 and 51,640.16 is: 77,466.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,784.64 : 235,196.40 = 51,640.16 : x
  2. Step 2: Convert to fraction form
    156,784.64/235,196.40 = 51,640.16/x
  3. Step 3: Cross multiply
    156,784.64x = 235,196.40 × 51,640.16
  4. Step 4: Simplify right side
    156,784.64x = 12,145,579,727.42
  5. Step 5: Solve for x
    x = 12,145,579,727.42/156,784.64
  6. Step 6: Final answer
    x = 77,466.64

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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.