Home / 103,632.30-155,371.65-70,269.10

Finding the Fourth Proportional to 103,632.30, 155,371.65 and 70,269.10

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Solution

The fourth proportional to 103,632.30, 155,371.65 and 70,269.10 is: 105,351.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,632.30 : 155,371.65 = 70,269.10 : x
  2. Step 2: Convert to fraction form
    103,632.30/155,371.65 = 70,269.10/x
  3. Step 3: Cross multiply
    103,632.30x = 155,371.65 × 70,269.10
  4. Step 4: Simplify right side
    103,632.30x = 10,917,826,011.02
  5. Step 5: Solve for x
    x = 10,917,826,011.02/103,632.30
  6. Step 6: Final answer
    x = 105,351.57

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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.