Home / 105,630.47-158,339.08-66,215.26

Finding the Fourth Proportional to 105,630.47, 158,339.08 and 66,215.26

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Solution

The fourth proportional to 105,630.47, 158,339.08 and 66,215.26 is: 99,256.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,630.47 : 158,339.08 = 66,215.26 : x
  2. Step 2: Convert to fraction form
    105,630.47/158,339.08 = 66,215.26/x
  3. Step 3: Cross multiply
    105,630.47x = 158,339.08 × 66,215.26
  4. Step 4: Simplify right side
    105,630.47x = 10,484,463,350.36
  5. Step 5: Solve for x
    x = 10,484,463,350.36/105,630.47
  6. Step 6: Final answer
    x = 99,256.05

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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.