Home / 115,636.32-159,579.36-67,890.24

Finding the Fourth Proportional to 115,636.32, 159,579.36 and 67,890.24

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Solution

The fourth proportional to 115,636.32, 159,579.36 and 67,890.24 is: 93,689.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,636.32 : 159,579.36 = 67,890.24 : x
  2. Step 2: Convert to fraction form
    115,636.32/159,579.36 = 67,890.24/x
  3. Step 3: Cross multiply
    115,636.32x = 159,579.36 × 67,890.24
  4. Step 4: Simplify right side
    115,636.32x = 10,833,881,049.45
  5. Step 5: Solve for x
    x = 10,833,881,049.45/115,636.32
  6. Step 6: Final answer
    x = 93,689.26

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1.5x scale

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.