Home / 134,328.09-185,497.25-86,663.37

Finding the Fourth Proportional to 134,328.09, 185,497.25 and 86,663.37

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Solution

The fourth proportional to 134,328.09, 185,497.25 and 86,663.37 is: 119,675.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,328.09 : 185,497.25 = 86,663.37 : x
  2. Step 2: Convert to fraction form
    134,328.09/185,497.25 = 86,663.37/x
  3. Step 3: Cross multiply
    134,328.09x = 185,497.25 × 86,663.37
  4. Step 4: Simplify right side
    134,328.09x = 16,075,816,377.42
  5. Step 5: Solve for x
    x = 16,075,816,377.42/134,328.09
  6. Step 6: Final answer
    x = 119,675.76

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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.