Home / 209,782.12-314,947.60-124,548.60

Finding the Fourth Proportional to 209,782.12, 314,947.60 and 124,548.60

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Solution

The fourth proportional to 209,782.12, 314,947.60 and 124,548.60 is: 186,985.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,782.12 : 314,947.60 = 124,548.60 : x
  2. Step 2: Convert to fraction form
    209,782.12/314,947.60 = 124,548.60/x
  3. Step 3: Cross multiply
    209,782.12x = 314,947.60 × 124,548.60
  4. Step 4: Simplify right side
    209,782.12x = 39,226,282,653.36
  5. Step 5: Solve for x
    x = 39,226,282,653.36/209,782.12
  6. Step 6: Final answer
    x = 186,985.82

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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.