Home / 103,945.08-143,436.42-61,495.32

Finding the Fourth Proportional to 103,945.08, 143,436.42 and 61,495.32

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Solution

The fourth proportional to 103,945.08, 143,436.42 and 61,495.32 is: 84,858.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,945.08 : 143,436.42 = 61,495.32 : x
  2. Step 2: Convert to fraction form
    103,945.08/143,436.42 = 61,495.32/x
  3. Step 3: Cross multiply
    103,945.08x = 143,436.42 × 61,495.32
  4. Step 4: Simplify right side
    103,945.08x = 8,820,668,547.55
  5. Step 5: Solve for x
    x = 8,820,668,547.55/103,945.08
  6. Step 6: Final answer
    x = 84,858.93

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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.