Home / 131,187.48-181,054.08-74,607.36

Finding the Fourth Proportional to 131,187.48, 181,054.08 and 74,607.36

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Solution

The fourth proportional to 131,187.48, 181,054.08 and 74,607.36 is: 102,966.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,187.48 : 181,054.08 = 74,607.36 : x
  2. Step 2: Convert to fraction form
    131,187.48/181,054.08 = 74,607.36/x
  3. Step 3: Cross multiply
    131,187.48x = 181,054.08 × 74,607.36
  4. Step 4: Simplify right side
    131,187.48x = 13,507,966,926.03
  5. Step 5: Solve for x
    x = 13,507,966,926.03/131,187.48
  6. Step 6: Final answer
    x = 102,966.89

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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.