Home / 103,243.10-154,862.81-28,362.95

Finding the Fourth Proportional to 103,243.10, 154,862.81 and 28,362.95

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Solution

The fourth proportional to 103,243.10, 154,862.81 and 28,362.95 is: 42,543.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,243.10 : 154,862.81 = 28,362.95 : x
  2. Step 2: Convert to fraction form
    103,243.10/154,862.81 = 28,362.95/x
  3. Step 3: Cross multiply
    103,243.10x = 154,862.81 × 28,362.95
  4. Step 4: Simplify right side
    103,243.10x = 4,392,365,220.76
  5. Step 5: Solve for x
    x = 4,392,365,220.76/103,243.10
  6. Step 6: Final answer
    x = 42,543.91

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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.