Home / 138,254.82-190,689.79-104,264.74

Finding the Fourth Proportional to 138,254.82, 190,689.79 and 104,264.74

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Solution

The fourth proportional to 138,254.82, 190,689.79 and 104,264.74 is: 143,808.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,254.82 : 190,689.79 = 104,264.74 : x
  2. Step 2: Convert to fraction form
    138,254.82/190,689.79 = 104,264.74/x
  3. Step 3: Cross multiply
    138,254.82x = 190,689.79 × 104,264.74
  4. Step 4: Simplify right side
    138,254.82x = 19,882,221,011.89
  5. Step 5: Solve for x
    x = 19,882,221,011.89/138,254.82
  6. Step 6: Final answer
    x = 143,808.52

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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.