Home / 112,746.27-169,127.30-45,278.30

Finding the Fourth Proportional to 112,746.27, 169,127.30 and 45,278.30

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Solution

The fourth proportional to 112,746.27, 169,127.30 and 45,278.30 is: 67,920.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,746.27 : 169,127.30 = 45,278.30 : x
  2. Step 2: Convert to fraction form
    112,746.27/169,127.30 = 45,278.30/x
  3. Step 3: Cross multiply
    112,746.27x = 169,127.30 × 45,278.30
  4. Step 4: Simplify right side
    112,746.27x = 7,657,796,824.02
  5. Step 5: Solve for x
    x = 7,657,796,824.02/112,746.27
  6. Step 6: Final answer
    x = 67,920.62

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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.