Home / 140,457.63-193,831.59-76,795.95

Finding the Fourth Proportional to 140,457.63, 193,831.59 and 76,795.95

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Solution

The fourth proportional to 140,457.63, 193,831.59 and 76,795.95 is: 105,978.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,457.63 : 193,831.59 = 76,795.95 : x
  2. Step 2: Convert to fraction form
    140,457.63/193,831.59 = 76,795.95/x
  3. Step 3: Cross multiply
    140,457.63x = 193,831.59 × 76,795.95
  4. Step 4: Simplify right side
    140,457.63x = 14,885,481,094.06
  5. Step 5: Solve for x
    x = 14,885,481,094.06/140,457.63
  6. Step 6: Final answer
    x = 105,978.44

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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.