Home / 153,112.02-229,714.70-78,284.72

Finding the Fourth Proportional to 153,112.02, 229,714.70 and 78,284.72

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Solution

The fourth proportional to 153,112.02, 229,714.70 and 78,284.72 is: 117,450.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,112.02 : 229,714.70 = 78,284.72 : x
  2. Step 2: Convert to fraction form
    153,112.02/229,714.70 = 78,284.72/x
  3. Step 3: Cross multiply
    153,112.02x = 229,714.70 × 78,284.72
  4. Step 4: Simplify right side
    153,112.02x = 17,983,149,429.39
  5. Step 5: Solve for x
    x = 17,983,149,429.39/153,112.02
  6. Step 6: Final answer
    x = 117,450.93

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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.