Home / 105,879.15-158,880.69-39,365.19

Finding the Fourth Proportional to 105,879.15, 158,880.69 and 39,365.19

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Solution

The fourth proportional to 105,879.15, 158,880.69 and 39,365.19 is: 59,070.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,879.15 : 158,880.69 = 39,365.19 : x
  2. Step 2: Convert to fraction form
    105,879.15/158,880.69 = 39,365.19/x
  3. Step 3: Cross multiply
    105,879.15x = 158,880.69 × 39,365.19
  4. Step 4: Simplify right side
    105,879.15x = 6,254,368,549.18
  5. Step 5: Solve for x
    x = 6,254,368,549.18/105,879.15
  6. Step 6: Final answer
    x = 59,070.82

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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.