Home / 115,069.10-172,382.52-70,566.08

Finding the Fourth Proportional to 115,069.10, 172,382.52 and 70,566.08

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Solution

The fourth proportional to 115,069.10, 172,382.52 and 70,566.08 is: 105,713.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,069.10 : 172,382.52 = 70,566.08 : x
  2. Step 2: Convert to fraction form
    115,069.10/172,382.52 = 70,566.08/x
  3. Step 3: Cross multiply
    115,069.10x = 172,382.52 × 70,566.08
  4. Step 4: Simplify right side
    115,069.10x = 12,164,358,696.92
  5. Step 5: Solve for x
    x = 12,164,358,696.92/115,069.10
  6. Step 6: Final answer
    x = 105,713.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.