Home / 101,864.98-140,558.67-56,543.30

Finding the Fourth Proportional to 101,864.98, 140,558.67 and 56,543.30

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Solution

The fourth proportional to 101,864.98, 140,558.67 and 56,543.30 is: 78,021.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,864.98 : 140,558.67 = 56,543.30 : x
  2. Step 2: Convert to fraction form
    101,864.98/140,558.67 = 56,543.30/x
  3. Step 3: Cross multiply
    101,864.98x = 140,558.67 × 56,543.30
  4. Step 4: Simplify right side
    101,864.98x = 7,947,651,045.41
  5. Step 5: Solve for x
    x = 7,947,651,045.41/101,864.98
  6. Step 6: Final answer
    x = 78,021.43

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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.