Home / 151,938.75-209,675.49-84,870.75

Finding the Fourth Proportional to 151,938.75, 209,675.49 and 84,870.75

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Solution

The fourth proportional to 151,938.75, 209,675.49 and 84,870.75 is: 117,121.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,938.75 : 209,675.49 = 84,870.75 : x
  2. Step 2: Convert to fraction form
    151,938.75/209,675.49 = 84,870.75/x
  3. Step 3: Cross multiply
    151,938.75x = 209,675.49 × 84,870.75
  4. Step 4: Simplify right side
    151,938.75x = 17,795,316,092.92
  5. Step 5: Solve for x
    x = 17,795,316,092.92/151,938.75
  6. Step 6: Final answer
    x = 117,121.64

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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.