Home / 138,259.48-190,795.96-77,829.94

Finding the Fourth Proportional to 138,259.48, 190,795.96 and 77,829.94

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Solution

The fourth proportional to 138,259.48, 190,795.96 and 77,829.94 is: 107,404.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,259.48 : 190,795.96 = 77,829.94 : x
  2. Step 2: Convert to fraction form
    138,259.48/190,795.96 = 77,829.94/x
  3. Step 3: Cross multiply
    138,259.48x = 190,795.96 × 77,829.94
  4. Step 4: Simplify right side
    138,259.48x = 14,849,638,119.04
  5. Step 5: Solve for x
    x = 14,849,638,119.04/138,259.48
  6. Step 6: Final answer
    x = 107,404.12

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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.