Home / 153,018.48-229,603.05-68,838.15

Finding the Fourth Proportional to 153,018.48, 229,603.05 and 68,838.15

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Solution

The fourth proportional to 153,018.48, 229,603.05 and 68,838.15 is: 103,291.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,018.48 : 229,603.05 = 68,838.15 : x
  2. Step 2: Convert to fraction form
    153,018.48/229,603.05 = 68,838.15/x
  3. Step 3: Cross multiply
    153,018.48x = 229,603.05 × 68,838.15
  4. Step 4: Simplify right side
    153,018.48x = 15,805,449,196.36
  5. Step 5: Solve for x
    x = 15,805,449,196.36/153,018.48
  6. Step 6: Final answer
    x = 103,291.11

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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.