Home / 138,256.10-190,691.54-104,266.01

Finding the Fourth Proportional to 138,256.10, 190,691.54 and 104,266.01

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Solution

The fourth proportional to 138,256.10, 190,691.54 and 104,266.01 is: 143,810.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,256.10 : 190,691.54 = 104,266.01 : x
  2. Step 2: Convert to fraction form
    138,256.10/190,691.54 = 104,266.01/x
  3. Step 3: Cross multiply
    138,256.10x = 190,691.54 × 104,266.01
  4. Step 4: Simplify right side
    138,256.10x = 19,882,644,541.77
  5. Step 5: Solve for x
    x = 19,882,644,541.77/138,256.10
  6. Step 6: Final answer
    x = 143,810.26

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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.