Home / 105,650.82-157,545.05-104,703.30

Finding the Fourth Proportional to 105,650.82, 157,545.05 and 104,703.30

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Solution

The fourth proportional to 105,650.82, 157,545.05 and 104,703.30 is: 156,132.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,650.82 : 157,545.05 = 104,703.30 : x
  2. Step 2: Convert to fraction form
    105,650.82/157,545.05 = 104,703.30/x
  3. Step 3: Cross multiply
    105,650.82x = 157,545.05 × 104,703.30
  4. Step 4: Simplify right side
    105,650.82x = 16,495,486,110.15
  5. Step 5: Solve for x
    x = 16,495,486,110.15/105,650.82
  6. Step 6: Final answer
    x = 156,132.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.