Home / 103,215.90-154,824.08-28,337.07

Finding the Fourth Proportional to 103,215.90, 154,824.08 and 28,337.07

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Solution

The fourth proportional to 103,215.90, 154,824.08 and 28,337.07 is: 42,505.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,215.90 : 154,824.08 = 28,337.07 : x
  2. Step 2: Convert to fraction form
    103,215.90/154,824.08 = 28,337.07/x
  3. Step 3: Cross multiply
    103,215.90x = 154,824.08 × 28,337.07
  4. Step 4: Simplify right side
    103,215.90x = 4,387,260,792.65
  5. Step 5: Solve for x
    x = 4,387,260,792.65/103,215.90
  6. Step 6: Final answer
    x = 42,505.67

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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.