Home / 151,051.12-208,453.44-83,071.28

Finding the Fourth Proportional to 151,051.12, 208,453.44 and 83,071.28

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Solution

The fourth proportional to 151,051.12, 208,453.44 and 83,071.28 is: 114,639.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,051.12 : 208,453.44 = 83,071.28 : x
  2. Step 2: Convert to fraction form
    151,051.12/208,453.44 = 83,071.28/x
  3. Step 3: Cross multiply
    151,051.12x = 208,453.44 × 83,071.28
  4. Step 4: Simplify right side
    151,051.12x = 17,316,494,081.20
  5. Step 5: Solve for x
    x = 17,316,494,081.20/151,051.12
  6. Step 6: Final answer
    x = 114,639.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.