Home / 138,253.97-190,688.63-104,263.90

Finding the Fourth Proportional to 138,253.97, 190,688.63 and 104,263.90

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Solution

The fourth proportional to 138,253.97, 190,688.63 and 104,263.90 is: 143,807.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,253.97 : 190,688.63 = 104,263.90 : x
  2. Step 2: Convert to fraction form
    138,253.97/190,688.63 = 104,263.90/x
  3. Step 3: Cross multiply
    138,253.97x = 190,688.63 × 104,263.90
  4. Step 4: Simplify right side
    138,253.97x = 19,881,939,251.42
  5. Step 5: Solve for x
    x = 19,881,939,251.42/138,253.97
  6. Step 6: Final answer
    x = 143,807.36

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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.