Home / 139,725.18-209,587.77-34,545.06

Finding the Fourth Proportional to 139,725.18, 209,587.77 and 34,545.06

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Solution

The fourth proportional to 139,725.18, 209,587.77 and 34,545.06 is: 51,817.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,725.18 : 209,587.77 = 34,545.06 : x
  2. Step 2: Convert to fraction form
    139,725.18/209,587.77 = 34,545.06/x
  3. Step 3: Cross multiply
    139,725.18x = 209,587.77 × 34,545.06
  4. Step 4: Simplify right side
    139,725.18x = 7,240,222,089.92
  5. Step 5: Solve for x
    x = 7,240,222,089.92/139,725.18
  6. Step 6: Final answer
    x = 51,817.59

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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.