Home / 123,827.94-170,886.11-70,121.30

Finding the Fourth Proportional to 123,827.94, 170,886.11 and 70,121.30

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Solution

The fourth proportional to 123,827.94, 170,886.11 and 70,121.30 is: 96,769.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,827.94 : 170,886.11 = 70,121.30 : x
  2. Step 2: Convert to fraction form
    123,827.94/170,886.11 = 70,121.30/x
  3. Step 3: Cross multiply
    123,827.94x = 170,886.11 × 70,121.30
  4. Step 4: Simplify right side
    123,827.94x = 11,982,754,980.11
  5. Step 5: Solve for x
    x = 11,982,754,980.11/123,827.94
  6. Step 6: Final answer
    x = 96,769.40

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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.