Home / 105,564.48-145,697.76-63,127.68

Finding the Fourth Proportional to 105,564.48, 145,697.76 and 63,127.68

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Solution

The fourth proportional to 105,564.48, 145,697.76 and 63,127.68 is: 87,127.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,564.48 : 145,697.76 = 63,127.68 : x
  2. Step 2: Convert to fraction form
    105,564.48/145,697.76 = 63,127.68/x
  3. Step 3: Cross multiply
    105,564.48x = 145,697.76 × 63,127.68
  4. Step 4: Simplify right side
    105,564.48x = 9,197,561,570.00
  5. Step 5: Solve for x
    x = 9,197,561,570.00/105,564.48
  6. Step 6: Final answer
    x = 87,127.43

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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.