Home / 153,044.04-229,343.71-86,342.37

Finding the Fourth Proportional to 153,044.04, 229,343.71 and 86,342.37

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Solution

The fourth proportional to 153,044.04, 229,343.71 and 86,342.37 is: 129,388.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,044.04 : 229,343.71 = 86,342.37 : x
  2. Step 2: Convert to fraction form
    153,044.04/229,343.71 = 86,342.37/x
  3. Step 3: Cross multiply
    153,044.04x = 229,343.71 × 86,342.37
  4. Step 4: Simplify right side
    153,044.04x = 19,802,079,465.99
  5. Step 5: Solve for x
    x = 19,802,079,465.99/153,044.04
  6. Step 6: Final answer
    x = 129,388.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.