Home / 153,056.34-229,608.18-78,135.84

Finding the Fourth Proportional to 153,056.34, 229,608.18 and 78,135.84

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Solution

The fourth proportional to 153,056.34, 229,608.18 and 78,135.84 is: 117,215.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,056.34 : 229,608.18 = 78,135.84 : x
  2. Step 2: Convert to fraction form
    153,056.34/229,608.18 = 78,135.84/x
  3. Step 3: Cross multiply
    153,056.34x = 229,608.18 × 78,135.84
  4. Step 4: Simplify right side
    153,056.34x = 17,940,628,015.17
  5. Step 5: Solve for x
    x = 17,940,628,015.17/153,056.34
  6. Step 6: Final answer
    x = 117,215.84

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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.