Home / 156,991.57-235,485.33-38,663.93

Finding the Fourth Proportional to 156,991.57, 235,485.33 and 38,663.93

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Solution

The fourth proportional to 156,991.57, 235,485.33 and 38,663.93 is: 57,995.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,991.57 : 235,485.33 = 38,663.93 : x
  2. Step 2: Convert to fraction form
    156,991.57/235,485.33 = 38,663.93/x
  3. Step 3: Cross multiply
    156,991.57x = 235,485.33 × 38,663.93
  4. Step 4: Simplify right side
    156,991.57x = 9,104,788,758.87
  5. Step 5: Solve for x
    x = 9,104,788,758.87/156,991.57
  6. Step 6: Final answer
    x = 57,995.40

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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.