Home / 112,271.88-168,529.14-99,871.32

Finding the Fourth Proportional to 112,271.88, 168,529.14 and 99,871.32

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Solution

The fourth proportional to 112,271.88, 168,529.14 and 99,871.32 is: 149,914.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,271.88 : 168,529.14 = 99,871.32 : x
  2. Step 2: Convert to fraction form
    112,271.88/168,529.14 = 99,871.32/x
  3. Step 3: Cross multiply
    112,271.88x = 168,529.14 × 99,871.32
  4. Step 4: Simplify right side
    112,271.88x = 16,831,227,670.26
  5. Step 5: Solve for x
    x = 16,831,227,670.26/112,271.88
  6. Step 6: Final answer
    x = 149,914.90

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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.