Home / 139,590.06-209,386.32-39,750.18

Finding the Fourth Proportional to 139,590.06, 209,386.32 and 39,750.18

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Solution

The fourth proportional to 139,590.06, 209,386.32 and 39,750.18 is: 59,625.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,590.06 : 209,386.32 = 39,750.18 : x
  2. Step 2: Convert to fraction form
    139,590.06/209,386.32 = 39,750.18/x
  3. Step 3: Cross multiply
    139,590.06x = 209,386.32 × 39,750.18
  4. Step 4: Simplify right side
    139,590.06x = 8,323,143,909.54
  5. Step 5: Solve for x
    x = 8,323,143,909.54/139,590.06
  6. Step 6: Final answer
    x = 59,625.62

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1.5x scale

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.