Home / 136,916.10-205,379.84-47,020.58

Finding the Fourth Proportional to 136,916.10, 205,379.84 and 47,020.58

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Solution

The fourth proportional to 136,916.10, 205,379.84 and 47,020.58 is: 70,532.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,916.10 : 205,379.84 = 47,020.58 : x
  2. Step 2: Convert to fraction form
    136,916.10/205,379.84 = 47,020.58/x
  3. Step 3: Cross multiply
    136,916.10x = 205,379.84 × 47,020.58
  4. Step 4: Simplify right side
    136,916.10x = 9,657,079,197.11
  5. Step 5: Solve for x
    x = 9,657,079,197.11/136,916.10
  6. Step 6: Final answer
    x = 70,532.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.