Home / 105,030.21-144,916.76-59,704.61

Finding the Fourth Proportional to 105,030.21, 144,916.76 and 59,704.61

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Solution

The fourth proportional to 105,030.21, 144,916.76 and 59,704.61 is: 82,378.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,030.21 : 144,916.76 = 59,704.61 : x
  2. Step 2: Convert to fraction form
    105,030.21/144,916.76 = 59,704.61/x
  3. Step 3: Cross multiply
    105,030.21x = 144,916.76 × 59,704.61
  4. Step 4: Simplify right side
    105,030.21x = 8,652,198,638.26
  5. Step 5: Solve for x
    x = 8,652,198,638.26/105,030.21
  6. Step 6: Final answer
    x = 82,378.19

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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.