Home / 108,985.39-150,417.90-63,663.23

Finding the Fourth Proportional to 108,985.39, 150,417.90 and 63,663.23

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Solution

The fourth proportional to 108,985.39, 150,417.90 and 63,663.23 is: 87,865.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,985.39 : 150,417.90 = 63,663.23 : x
  2. Step 2: Convert to fraction form
    108,985.39/150,417.90 = 63,663.23/x
  3. Step 3: Cross multiply
    108,985.39x = 150,417.90 × 63,663.23
  4. Step 4: Simplify right side
    108,985.39x = 9,576,089,739.86
  5. Step 5: Solve for x
    x = 9,576,089,739.86/108,985.39
  6. Step 6: Final answer
    x = 87,865.81

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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.