Home / 210,759.05-290,851.76-115,271.89

Finding the Fourth Proportional to 210,759.05, 290,851.76 and 115,271.89

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Solution

The fourth proportional to 210,759.05, 290,851.76 and 115,271.89 is: 159,077.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,759.05 : 290,851.76 = 115,271.89 : x
  2. Step 2: Convert to fraction form
    210,759.05/290,851.76 = 115,271.89/x
  3. Step 3: Cross multiply
    210,759.05x = 290,851.76 × 115,271.89
  4. Step 4: Simplify right side
    210,759.05x = 33,527,032,085.03
  5. Step 5: Solve for x
    x = 33,527,032,085.03/210,759.05
  6. Step 6: Final answer
    x = 159,077.54

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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.