Home / 103,551.47-155,228.78-66,006.15

Finding the Fourth Proportional to 103,551.47, 155,228.78 and 66,006.15

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Solution

The fourth proportional to 103,551.47, 155,228.78 and 66,006.15 is: 98,946.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,551.47 : 155,228.78 = 66,006.15 : x
  2. Step 2: Convert to fraction form
    103,551.47/155,228.78 = 66,006.15/x
  3. Step 3: Cross multiply
    103,551.47x = 155,228.78 × 66,006.15
  4. Step 4: Simplify right side
    103,551.47x = 10,246,054,137.00
  5. Step 5: Solve for x
    x = 10,246,054,137.00/103,551.47
  6. Step 6: Final answer
    x = 98,946.49

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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.