Home / 157,509.49-236,215.02-68,739.16

Finding the Fourth Proportional to 157,509.49, 236,215.02 and 68,739.16

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Solution

The fourth proportional to 157,509.49, 236,215.02 and 68,739.16 is: 103,087.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,509.49 : 236,215.02 = 68,739.16 : x
  2. Step 2: Convert to fraction form
    157,509.49/236,215.02 = 68,739.16/x
  3. Step 3: Cross multiply
    157,509.49x = 236,215.02 × 68,739.16
  4. Step 4: Simplify right side
    157,509.49x = 16,237,222,054.18
  5. Step 5: Solve for x
    x = 16,237,222,054.18/157,509.49
  6. Step 6: Final answer
    x = 103,087.26

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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.