Home / 210,939.26-291,094.46-115,445.72

Finding the Fourth Proportional to 210,939.26, 291,094.46 and 115,445.72

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Solution

The fourth proportional to 210,939.26, 291,094.46 and 115,445.72 is: 159,314.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,939.26 : 291,094.46 = 115,445.72 : x
  2. Step 2: Convert to fraction form
    210,939.26/291,094.46 = 115,445.72/x
  3. Step 3: Cross multiply
    210,939.26x = 291,094.46 × 115,445.72
  4. Step 4: Simplify right side
    210,939.26x = 33,605,610,106.14
  5. Step 5: Solve for x
    x = 33,605,610,106.14/210,939.26
  6. Step 6: Final answer
    x = 159,314.16

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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.