Home / 156,961.74-235,126.98-72,603.48

Finding the Fourth Proportional to 156,961.74, 235,126.98 and 72,603.48

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Solution

The fourth proportional to 156,961.74, 235,126.98 and 72,603.48 is: 108,759.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,961.74 : 235,126.98 = 72,603.48 : x
  2. Step 2: Convert to fraction form
    156,961.74/235,126.98 = 72,603.48/x
  3. Step 3: Cross multiply
    156,961.74x = 235,126.98 × 72,603.48
  4. Step 4: Simplify right side
    156,961.74x = 17,071,036,989.89
  5. Step 5: Solve for x
    x = 17,071,036,989.89/156,961.74
  6. Step 6: Final answer
    x = 108,759.22

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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.