Home / 115,344.96-159,254.73-74,607.81

Finding the Fourth Proportional to 115,344.96, 159,254.73 and 74,607.81

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Solution

The fourth proportional to 115,344.96, 159,254.73 and 74,607.81 is: 103,009.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,344.96 : 159,254.73 = 74,607.81 : x
  2. Step 2: Convert to fraction form
    115,344.96/159,254.73 = 74,607.81/x
  3. Step 3: Cross multiply
    115,344.96x = 159,254.73 × 74,607.81
  4. Step 4: Simplify right side
    115,344.96x = 11,881,646,637.44
  5. Step 5: Solve for x
    x = 11,881,646,637.44/115,344.96
  6. Step 6: Final answer
    x = 103,009.67

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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.