Home / 156,783.14-216,364.75-85,167.26

Finding the Fourth Proportional to 156,783.14, 216,364.75 and 85,167.26

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Solution

The fourth proportional to 156,783.14, 216,364.75 and 85,167.26 is: 117,533.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,783.14 : 216,364.75 = 85,167.26 : x
  2. Step 2: Convert to fraction form
    156,783.14/216,364.75 = 85,167.26/x
  3. Step 3: Cross multiply
    156,783.14x = 216,364.75 × 85,167.26
  4. Step 4: Simplify right side
    156,783.14x = 18,427,191,836.26
  5. Step 5: Solve for x
    x = 18,427,191,836.26/156,783.14
  6. Step 6: Final answer
    x = 117,533.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.