Home / 369,986.20-554,916.76-103,685.48

Finding the Fourth Proportional to 369,986.20, 554,916.76 and 103,685.48

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Solution

The fourth proportional to 369,986.20, 554,916.76 and 103,685.48 is: 155,510.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,986.20 : 554,916.76 = 103,685.48 : x
  2. Step 2: Convert to fraction form
    369,986.20/554,916.76 = 103,685.48/x
  3. Step 3: Cross multiply
    369,986.20x = 554,916.76 × 103,685.48
  4. Step 4: Simplify right side
    369,986.20x = 57,536,810,620.64
  5. Step 5: Solve for x
    x = 57,536,810,620.64/369,986.20
  6. Step 6: Final answer
    x = 155,510.69

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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.