Home / 123,420.59-185,137.29-39,187.34

Finding the Fourth Proportional to 123,420.59, 185,137.29 and 39,187.34

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Solution

The fourth proportional to 123,420.59, 185,137.29 and 39,187.34 is: 58,783.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,420.59 : 185,137.29 = 39,187.34 : x
  2. Step 2: Convert to fraction form
    123,420.59/185,137.29 = 39,187.34/x
  3. Step 3: Cross multiply
    123,420.59x = 185,137.29 × 39,187.34
  4. Step 4: Simplify right side
    123,420.59x = 7,255,037,929.91
  5. Step 5: Solve for x
    x = 7,255,037,929.91/123,420.59
  6. Step 6: Final answer
    x = 58,783.04

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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.