Home / 102,036.82-140,803.98-56,711.86

Finding the Fourth Proportional to 102,036.82, 140,803.98 and 56,711.86

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Solution

The fourth proportional to 102,036.82, 140,803.98 and 56,711.86 is: 78,258.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,036.82 : 140,803.98 = 56,711.86 : x
  2. Step 2: Convert to fraction form
    102,036.82/140,803.98 = 56,711.86/x
  3. Step 3: Cross multiply
    102,036.82x = 140,803.98 × 56,711.86
  4. Step 4: Simplify right side
    102,036.82x = 7,985,255,601.20
  5. Step 5: Solve for x
    x = 7,985,255,601.20/102,036.82
  6. Step 6: Final answer
    x = 78,258.57

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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.