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Finding the Fourth Proportional to 103,746, 143,195.40 and 59,059.92

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Solution

The fourth proportional to 103,746, 143,195.40 and 59,059.92 is: 81,517.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,746 : 143,195.40 = 59,059.92 : x
  2. Step 2: Convert to fraction form
    103,746/143,195.40 = 59,059.92/x
  3. Step 3: Cross multiply
    103,746x = 143,195.40 × 59,059.92
  4. Step 4: Simplify right side
    103,746x = 8,457,108,868.37
  5. Step 5: Solve for x
    x = 8,457,108,868.37/103,746
  6. Step 6: Final answer
    x = 81,517.45

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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.