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Finding the Fourth Proportional to 105,097.40, 157,386.90 and 69,846.20

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Solution

The fourth proportional to 105,097.40, 157,386.90 and 69,846.20 is: 104,597.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,097.40 : 157,386.90 = 69,846.20 : x
  2. Step 2: Convert to fraction form
    105,097.40/157,386.90 = 69,846.20/x
  3. Step 3: Cross multiply
    105,097.40x = 157,386.90 × 69,846.20
  4. Step 4: Simplify right side
    105,097.40x = 10,992,876,894.78
  5. Step 5: Solve for x
    x = 10,992,876,894.78/105,097.40
  6. Step 6: Final answer
    x = 104,597.04

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1.5x scale

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.