Home / 105,432.17-157,973.29-74,201.81

Finding the Fourth Proportional to 105,432.17, 157,973.29 and 74,201.81

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Solution

The fourth proportional to 105,432.17, 157,973.29 and 74,201.81 is: 111,179.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,432.17 : 157,973.29 = 74,201.81 : x
  2. Step 2: Convert to fraction form
    105,432.17/157,973.29 = 74,201.81/x
  3. Step 3: Cross multiply
    105,432.17x = 157,973.29 × 74,201.81
  4. Step 4: Simplify right side
    105,432.17x = 11,721,902,888.78
  5. Step 5: Solve for x
    x = 11,721,902,888.78/105,432.17
  6. Step 6: Final answer
    x = 111,179.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.