Home / 112,015.16-154,579.29-64,267.46

Finding the Fourth Proportional to 112,015.16, 154,579.29 and 64,267.46

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Solution

The fourth proportional to 112,015.16, 154,579.29 and 64,267.46 is: 88,688.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,015.16 : 154,579.29 = 64,267.46 : x
  2. Step 2: Convert to fraction form
    112,015.16/154,579.29 = 64,267.46/x
  3. Step 3: Cross multiply
    112,015.16x = 154,579.29 × 64,267.46
  4. Step 4: Simplify right side
    112,015.16x = 9,934,418,336.90
  5. Step 5: Solve for x
    x = 9,934,418,336.90/112,015.16
  6. Step 6: Final answer
    x = 88,688.16

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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.