Home / 115,551.10-159,372.54-99,445.24

Finding the Fourth Proportional to 115,551.10, 159,372.54 and 99,445.24

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Solution

The fourth proportional to 115,551.10, 159,372.54 and 99,445.24 is: 137,158.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,551.10 : 159,372.54 = 99,445.24 : x
  2. Step 2: Convert to fraction form
    115,551.10/159,372.54 = 99,445.24/x
  3. Step 3: Cross multiply
    115,551.10x = 159,372.54 × 99,445.24
  4. Step 4: Simplify right side
    115,551.10x = 15,848,840,489.71
  5. Step 5: Solve for x
    x = 15,848,840,489.71/115,551.10
  6. Step 6: Final answer
    x = 137,158.72

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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.