Home / 105,643.32-158,501.43-66,153.39

Finding the Fourth Proportional to 105,643.32, 158,501.43 and 66,153.39

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Solution

The fourth proportional to 105,643.32, 158,501.43 and 66,153.39 is: 99,252.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,643.32 : 158,501.43 = 66,153.39 : x
  2. Step 2: Convert to fraction form
    105,643.32/158,501.43 = 66,153.39/x
  3. Step 3: Cross multiply
    105,643.32x = 158,501.43 × 66,153.39
  4. Step 4: Simplify right side
    105,643.32x = 10,485,406,914.35
  5. Step 5: Solve for x
    x = 10,485,406,914.35/105,643.32
  6. Step 6: Final answer
    x = 99,252.91

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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.