Home / 105,345,745.72-157,846,094-56,109,342.70

Finding the Fourth Proportional to 105,345,745.72, 157,846,094 and 56,109,342.70

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Solution

The fourth proportional to 105,345,745.72, 157,846,094 and 56,109,342.70 is: 84,072,123.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,345,745.72 : 157,846,094 = 56,109,342.70 : x
  2. Step 2: Convert to fraction form
    105,345,745.72/157,846,094 = 56,109,342.70/x
  3. Step 3: Cross multiply
    105,345,745.72x = 157,846,094 × 56,109,342.70
  4. Step 4: Simplify right side
    105,345,745.72x = 8,856,640,582,102,414
  5. Step 5: Solve for x
    x = 8,856,640,582,102,414/105,345,745.72
  6. Step 6: Final answer
    x = 84,072,123.86

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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.