Home / 134,887.38-186,111.93-86,467.20

Finding the Fourth Proportional to 134,887.38, 186,111.93 and 86,467.20

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Solution

The fourth proportional to 134,887.38, 186,111.93 and 86,467.20 is: 119,303.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,887.38 : 186,111.93 = 86,467.20 : x
  2. Step 2: Convert to fraction form
    134,887.38/186,111.93 = 86,467.20/x
  3. Step 3: Cross multiply
    134,887.38x = 186,111.93 × 86,467.20
  4. Step 4: Simplify right side
    134,887.38x = 16,092,577,473.70
  5. Step 5: Solve for x
    x = 16,092,577,473.70/134,887.38
  6. Step 6: Final answer
    x = 119,303.80

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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.