Home / 145,056.39-200,179.35-81,392.82

Finding the Fourth Proportional to 145,056.39, 200,179.35 and 81,392.82

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Solution

The fourth proportional to 145,056.39, 200,179.35 and 81,392.82 is: 112,322.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,056.39 : 200,179.35 = 81,392.82 : x
  2. Step 2: Convert to fraction form
    145,056.39/200,179.35 = 81,392.82/x
  3. Step 3: Cross multiply
    145,056.39x = 200,179.35 × 81,392.82
  4. Step 4: Simplify right side
    145,056.39x = 16,293,161,802.27
  5. Step 5: Solve for x
    x = 16,293,161,802.27/145,056.39
  6. Step 6: Final answer
    x = 112,322.95

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1.5x scale

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.