Home / 102,040.24-140,800.02-56,718.52

Finding the Fourth Proportional to 102,040.24, 140,800.02 and 56,718.52

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Solution

The fourth proportional to 102,040.24, 140,800.02 and 56,718.52 is: 78,262.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,040.24 : 140,800.02 = 56,718.52 : x
  2. Step 2: Convert to fraction form
    102,040.24/140,800.02 = 56,718.52/x
  3. Step 3: Cross multiply
    102,040.24x = 140,800.02 × 56,718.52
  4. Step 4: Simplify right side
    102,040.24x = 7,985,968,750.37
  5. Step 5: Solve for x
    x = 7,985,968,750.37/102,040.24
  6. Step 6: Final answer
    x = 78,262.94

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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.