Home / 102,911.88-154,279.08-39,776.30

Finding the Fourth Proportional to 102,911.88, 154,279.08 and 39,776.30

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Solution

The fourth proportional to 102,911.88, 154,279.08 and 39,776.30 is: 59,630.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,911.88 : 154,279.08 = 39,776.30 : x
  2. Step 2: Convert to fraction form
    102,911.88/154,279.08 = 39,776.30/x
  3. Step 3: Cross multiply
    102,911.88x = 154,279.08 × 39,776.30
  4. Step 4: Simplify right side
    102,911.88x = 6,136,650,969.80
  5. Step 5: Solve for x
    x = 6,136,650,969.80/102,911.88
  6. Step 6: Final answer
    x = 59,630.15

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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.