Home / 123,885.05-185,901.08-45,005.42

Finding the Fourth Proportional to 123,885.05, 185,901.08 and 45,005.42

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Solution

The fourth proportional to 123,885.05, 185,901.08 and 45,005.42 is: 67,534.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,885.05 : 185,901.08 = 45,005.42 : x
  2. Step 2: Convert to fraction form
    123,885.05/185,901.08 = 45,005.42/x
  3. Step 3: Cross multiply
    123,885.05x = 185,901.08 × 45,005.42
  4. Step 4: Simplify right side
    123,885.05x = 8,366,556,423.58
  5. Step 5: Solve for x
    x = 8,366,556,423.58/123,885.05
  6. Step 6: Final answer
    x = 67,534.84

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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.