Home / 156,971.15-235,456.73-51,776.45

Finding the Fourth Proportional to 156,971.15, 235,456.73 and 51,776.45

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Solution

The fourth proportional to 156,971.15, 235,456.73 and 51,776.45 is: 77,664.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,971.15 : 235,456.73 = 51,776.45 : x
  2. Step 2: Convert to fraction form
    156,971.15/235,456.73 = 51,776.45/x
  3. Step 3: Cross multiply
    156,971.15x = 235,456.73 × 51,776.45
  4. Step 4: Simplify right side
    156,971.15x = 12,191,113,608.01
  5. Step 5: Solve for x
    x = 12,191,113,608.01/156,971.15
  6. Step 6: Final answer
    x = 77,664.68

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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.