Home / 105,934.64-146,070-67,643.84

Finding the Fourth Proportional to 105,934.64, 146,070 and 67,643.84

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Solution

The fourth proportional to 105,934.64, 146,070 and 67,643.84 is: 93,272.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,934.64 : 146,070 = 67,643.84 : x
  2. Step 2: Convert to fraction form
    105,934.64/146,070 = 67,643.84/x
  3. Step 3: Cross multiply
    105,934.64x = 146,070 × 67,643.84
  4. Step 4: Simplify right side
    105,934.64x = 9,880,735,708.80
  5. Step 5: Solve for x
    x = 9,880,735,708.80/105,934.64
  6. Step 6: Final answer
    x = 93,272.00

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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.