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Finding the Fourth Proportional to 105,603.98, 145,737.51 and 60,289.34

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Solution

The fourth proportional to 105,603.98, 145,737.51 and 60,289.34 is: 83,201.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,603.98 : 145,737.51 = 60,289.34 : x
  2. Step 2: Convert to fraction form
    105,603.98/145,737.51 = 60,289.34/x
  3. Step 3: Cross multiply
    105,603.98x = 145,737.51 × 60,289.34
  4. Step 4: Simplify right side
    105,603.98x = 8,786,418,291.14
  5. Step 5: Solve for x
    x = 8,786,418,291.14/105,603.98
  6. Step 6: Final answer
    x = 83,201.58

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1.5x scale

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.