Home / 139,415.48-209,005.68-60,470.24

Finding the Fourth Proportional to 139,415.48, 209,005.68 and 60,470.24

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Solution

The fourth proportional to 139,415.48, 209,005.68 and 60,470.24 is: 90,654.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,415.48 : 209,005.68 = 60,470.24 : x
  2. Step 2: Convert to fraction form
    139,415.48/209,005.68 = 60,470.24/x
  3. Step 3: Cross multiply
    139,415.48x = 209,005.68 × 60,470.24
  4. Step 4: Simplify right side
    139,415.48x = 12,638,623,630.96
  5. Step 5: Solve for x
    x = 12,638,623,630.96/139,415.48
  6. Step 6: Final answer
    x = 90,654.38

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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.