Home / 124,548.96-171,828.18-76,719.36

Finding the Fourth Proportional to 124,548.96, 171,828.18 and 76,719.36

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Solution

The fourth proportional to 124,548.96, 171,828.18 and 76,719.36 is: 105,842.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,548.96 : 171,828.18 = 76,719.36 : x
  2. Step 2: Convert to fraction form
    124,548.96/171,828.18 = 76,719.36/x
  3. Step 3: Cross multiply
    124,548.96x = 171,828.18 × 76,719.36
  4. Step 4: Simplify right side
    124,548.96x = 13,182,547,999.56
  5. Step 5: Solve for x
    x = 13,182,547,999.56/124,548.96
  6. Step 6: Final answer
    x = 105,842.30

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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.