Home / 149,219.04-205,870.32-84,680.64

Finding the Fourth Proportional to 149,219.04, 205,870.32 and 84,680.64

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Solution

The fourth proportional to 149,219.04, 205,870.32 and 84,680.64 is: 116,829.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,219.04 : 205,870.32 = 84,680.64 : x
  2. Step 2: Convert to fraction form
    149,219.04/205,870.32 = 84,680.64/x
  3. Step 3: Cross multiply
    149,219.04x = 205,870.32 × 84,680.64
  4. Step 4: Simplify right side
    149,219.04x = 17,433,230,454.60
  5. Step 5: Solve for x
    x = 17,433,230,454.60/149,219.04
  6. Step 6: Final answer
    x = 116,829.80

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1.5x scale

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.