Home / 131,087.48-180,916.08-74,507.36

Finding the Fourth Proportional to 131,087.48, 180,916.08 and 74,507.36

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Solution

The fourth proportional to 131,087.48, 180,916.08 and 74,507.36 is: 102,828.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,087.48 : 180,916.08 = 74,507.36 : x
  2. Step 2: Convert to fraction form
    131,087.48/180,916.08 = 74,507.36/x
  3. Step 3: Cross multiply
    131,087.48x = 180,916.08 × 74,507.36
  4. Step 4: Simplify right side
    131,087.48x = 13,479,579,502.35
  5. Step 5: Solve for x
    x = 13,479,579,502.35/131,087.48
  6. Step 6: Final answer
    x = 102,828.89

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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.