Home / 103,772.10-155,558.52-66,226.17

Finding the Fourth Proportional to 103,772.10, 155,558.52 and 66,226.17

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Solution

The fourth proportional to 103,772.10, 155,558.52 and 66,226.17 is: 99,275.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,772.10 : 155,558.52 = 66,226.17 : x
  2. Step 2: Convert to fraction form
    103,772.10/155,558.52 = 66,226.17/x
  3. Step 3: Cross multiply
    103,772.10x = 155,558.52 × 66,226.17
  4. Step 4: Simplify right side
    103,772.10x = 10,302,044,990.47
  5. Step 5: Solve for x
    x = 10,302,044,990.47/103,772.10
  6. Step 6: Final answer
    x = 99,275.67

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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.