Home / 104,979.28-144,871.86-67,275.40

Finding the Fourth Proportional to 104,979.28, 144,871.86 and 67,275.40

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Solution

The fourth proportional to 104,979.28, 144,871.86 and 67,275.40 is: 92,840.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,979.28 : 144,871.86 = 67,275.40 : x
  2. Step 2: Convert to fraction form
    104,979.28/144,871.86 = 67,275.40/x
  3. Step 3: Cross multiply
    104,979.28x = 144,871.86 × 67,275.40
  4. Step 4: Simplify right side
    104,979.28x = 9,746,312,330.24
  5. Step 5: Solve for x
    x = 9,746,312,330.24/104,979.28
  6. Step 6: Final answer
    x = 92,840.34

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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.