Home / 105,710.37-158,260.86-70,207.13

Finding the Fourth Proportional to 105,710.37, 158,260.86 and 70,207.13

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Solution

The fourth proportional to 105,710.37, 158,260.86 and 70,207.13 is: 105,108.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,710.37 : 158,260.86 = 70,207.13 : x
  2. Step 2: Convert to fraction form
    105,710.37/158,260.86 = 70,207.13/x
  3. Step 3: Cross multiply
    105,710.37x = 158,260.86 × 70,207.13
  4. Step 4: Simplify right side
    105,710.37x = 11,111,039,980.63
  5. Step 5: Solve for x
    x = 11,111,039,980.63/105,710.37
  6. Step 6: Final answer
    x = 105,108.33

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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.