Home / 153,054.09-229,604.81-78,133.59

Finding the Fourth Proportional to 153,054.09, 229,604.81 and 78,133.59

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Solution

The fourth proportional to 153,054.09, 229,604.81 and 78,133.59 is: 117,212.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,054.09 : 229,604.81 = 78,133.59 : x
  2. Step 2: Convert to fraction form
    153,054.09/229,604.81 = 78,133.59/x
  3. Step 3: Cross multiply
    153,054.09x = 229,604.81 × 78,133.59
  4. Step 4: Simplify right side
    153,054.09x = 17,939,847,695.90
  5. Step 5: Solve for x
    x = 17,939,847,695.90/153,054.09
  6. Step 6: Final answer
    x = 117,212.47

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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.