Home / 138,497.07-191,083.45-84,726.03

Finding the Fourth Proportional to 138,497.07, 191,083.45 and 84,726.03

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Solution

The fourth proportional to 138,497.07, 191,083.45 and 84,726.03 is: 116,895.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,497.07 : 191,083.45 = 84,726.03 : x
  2. Step 2: Convert to fraction form
    138,497.07/191,083.45 = 84,726.03/x
  3. Step 3: Cross multiply
    138,497.07x = 191,083.45 × 84,726.03
  4. Step 4: Simplify right side
    138,497.07x = 16,189,742,117.20
  5. Step 5: Solve for x
    x = 16,189,742,117.20/138,497.07
  6. Step 6: Final answer
    x = 116,895.92

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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.