Home / 103,621.51-155,432.28-68,552.98

Finding the Fourth Proportional to 103,621.51, 155,432.28 and 68,552.98

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Solution

The fourth proportional to 103,621.51, 155,432.28 and 68,552.98 is: 102,829.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,621.51 : 155,432.28 = 68,552.98 : x
  2. Step 2: Convert to fraction form
    103,621.51/155,432.28 = 68,552.98/x
  3. Step 3: Cross multiply
    103,621.51x = 155,432.28 × 68,552.98
  4. Step 4: Simplify right side
    103,621.51x = 10,655,345,982.19
  5. Step 5: Solve for x
    x = 10,655,345,982.19/103,621.51
  6. Step 6: Final answer
    x = 102,829.48

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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.