Home / 138,051.65-190,465.44-112,514.10

Finding the Fourth Proportional to 138,051.65, 190,465.44 and 112,514.10

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Solution

The fourth proportional to 138,051.65, 190,465.44 and 112,514.10 is: 155,232.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,051.65 : 190,465.44 = 112,514.10 : x
  2. Step 2: Convert to fraction form
    138,051.65/190,465.44 = 112,514.10/x
  3. Step 3: Cross multiply
    138,051.65x = 190,465.44 × 112,514.10
  4. Step 4: Simplify right side
    138,051.65x = 21,430,047,562.70
  5. Step 5: Solve for x
    x = 21,430,047,562.70/138,051.65
  6. Step 6: Final answer
    x = 155,232.10

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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.