Home / 140,315.96-193,649.38-76,663.32

Finding the Fourth Proportional to 140,315.96, 193,649.38 and 76,663.32

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Solution

The fourth proportional to 140,315.96, 193,649.38 and 76,663.32 is: 105,802.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,315.96 : 193,649.38 = 76,663.32 : x
  2. Step 2: Convert to fraction form
    140,315.96/193,649.38 = 76,663.32/x
  3. Step 3: Cross multiply
    140,315.96x = 193,649.38 × 76,663.32
  4. Step 4: Simplify right side
    140,315.96x = 14,845,804,386.74
  5. Step 5: Solve for x
    x = 14,845,804,386.74/140,315.96
  6. Step 6: Final answer
    x = 105,802.68

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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.