Home / 112,981.77-169,473.64-28,742.02

Finding the Fourth Proportional to 112,981.77, 169,473.64 and 28,742.02

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Solution

The fourth proportional to 112,981.77, 169,473.64 and 28,742.02 is: 43,113.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,981.77 : 169,473.64 = 28,742.02 : x
  2. Step 2: Convert to fraction form
    112,981.77/169,473.64 = 28,742.02/x
  3. Step 3: Cross multiply
    112,981.77x = 169,473.64 × 28,742.02
  4. Step 4: Simplify right side
    112,981.77x = 4,871,014,359.36
  5. Step 5: Solve for x
    x = 4,871,014,359.36/112,981.77
  6. Step 6: Final answer
    x = 43,113.28

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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.