Home / 140,564.48-193,981.16-76,903.34

Finding the Fourth Proportional to 140,564.48, 193,981.16 and 76,903.34

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Solution

The fourth proportional to 140,564.48, 193,981.16 and 76,903.34 is: 106,127.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,564.48 : 193,981.16 = 76,903.34 : x
  2. Step 2: Convert to fraction form
    140,564.48/193,981.16 = 76,903.34/x
  3. Step 3: Cross multiply
    140,564.48x = 193,981.16 × 76,903.34
  4. Step 4: Simplify right side
    140,564.48x = 14,917,798,323.43
  5. Step 5: Solve for x
    x = 14,917,798,323.43/140,564.48
  6. Step 6: Final answer
    x = 106,127.80

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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.