Home / 236,629.02-354,949.05-78,870.30

Finding the Fourth Proportional to 236,629.02, 354,949.05 and 78,870.30

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Solution

The fourth proportional to 236,629.02, 354,949.05 and 78,870.30 is: 118,307.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,629.02 : 354,949.05 = 78,870.30 : x
  2. Step 2: Convert to fraction form
    236,629.02/354,949.05 = 78,870.30/x
  3. Step 3: Cross multiply
    236,629.02x = 354,949.05 × 78,870.30
  4. Step 4: Simplify right side
    236,629.02x = 27,994,938,058.22
  5. Step 5: Solve for x
    x = 27,994,938,058.22/236,629.02
  6. Step 6: Final answer
    x = 118,307.29

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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.