Home / 102,118.23-140,920.70-56,796.08

Finding the Fourth Proportional to 102,118.23, 140,920.70 and 56,796.08

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Solution

The fourth proportional to 102,118.23, 140,920.70 and 56,796.08 is: 78,377.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,118.23 : 140,920.70 = 56,796.08 : x
  2. Step 2: Convert to fraction form
    102,118.23/140,920.70 = 56,796.08/x
  3. Step 3: Cross multiply
    102,118.23x = 140,920.70 × 56,796.08
  4. Step 4: Simplify right side
    102,118.23x = 8,003,742,362.27
  5. Step 5: Solve for x
    x = 8,003,742,362.27/102,118.23
  6. Step 6: Final answer
    x = 78,377.21

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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.