Home / 103,186.14-154,779.44-28,307.36

Finding the Fourth Proportional to 103,186.14, 154,779.44 and 28,307.36

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Solution

The fourth proportional to 103,186.14, 154,779.44 and 28,307.36 is: 42,461.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,186.14 : 154,779.44 = 28,307.36 : x
  2. Step 2: Convert to fraction form
    103,186.14/154,779.44 = 28,307.36/x
  3. Step 3: Cross multiply
    103,186.14x = 154,779.44 × 28,307.36
  4. Step 4: Simplify right side
    103,186.14x = 4,381,397,328.68
  5. Step 5: Solve for x
    x = 4,381,397,328.68/103,186.14
  6. Step 6: Final answer
    x = 42,461.10

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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.