Home / 210,627.96-290,666.55-115,135.02

Finding the Fourth Proportional to 210,627.96, 290,666.55 and 115,135.02

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Solution

The fourth proportional to 210,627.96, 290,666.55 and 115,135.02 is: 158,886.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,627.96 : 290,666.55 = 115,135.02 : x
  2. Step 2: Convert to fraction form
    210,627.96/290,666.55 = 115,135.02/x
  3. Step 3: Cross multiply
    210,627.96x = 290,666.55 × 115,135.02
  4. Step 4: Simplify right side
    210,627.96x = 33,465,899,047.58
  5. Step 5: Solve for x
    x = 33,465,899,047.58/210,627.96
  6. Step 6: Final answer
    x = 158,886.31

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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.