Home / 112,703.23-169,054.80-28,468.40

Finding the Fourth Proportional to 112,703.23, 169,054.80 and 28,468.40

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Solution

The fourth proportional to 112,703.23, 169,054.80 and 28,468.40 is: 42,702.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,703.23 : 169,054.80 = 28,468.40 : x
  2. Step 2: Convert to fraction form
    112,703.23/169,054.80 = 28,468.40/x
  3. Step 3: Cross multiply
    112,703.23x = 169,054.80 × 28,468.40
  4. Step 4: Simplify right side
    112,703.23x = 4,812,718,716.29
  5. Step 5: Solve for x
    x = 4,812,718,716.29/112,703.23
  6. Step 6: Final answer
    x = 42,702.58

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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.