Home / 122,357.15-168,854.02-68,643.32

Finding the Fourth Proportional to 122,357.15, 168,854.02 and 68,643.32

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Solution

The fourth proportional to 122,357.15, 168,854.02 and 68,643.32 is: 94,728.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,357.15 : 168,854.02 = 68,643.32 : x
  2. Step 2: Convert to fraction form
    122,357.15/168,854.02 = 68,643.32/x
  3. Step 3: Cross multiply
    122,357.15x = 168,854.02 × 68,643.32
  4. Step 4: Simplify right side
    122,357.15x = 11,590,700,528.15
  5. Step 5: Solve for x
    x = 11,590,700,528.15/122,357.15
  6. Step 6: Final answer
    x = 94,728.43

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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.