Home / 156,963.09-235,313.25-72,783.33

Finding the Fourth Proportional to 156,963.09, 235,313.25 and 72,783.33

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Solution

The fourth proportional to 156,963.09, 235,313.25 and 72,783.33 is: 109,114.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,963.09 : 235,313.25 = 72,783.33 : x
  2. Step 2: Convert to fraction form
    156,963.09/235,313.25 = 72,783.33/x
  3. Step 3: Cross multiply
    156,963.09x = 235,313.25 × 72,783.33
  4. Step 4: Simplify right side
    156,963.09x = 17,126,881,928.12
  5. Step 5: Solve for x
    x = 17,126,881,928.12/156,963.09
  6. Step 6: Final answer
    x = 109,114.07

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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.