Home / 150,590.02-207,779.38-90,137.70

Finding the Fourth Proportional to 150,590.02, 207,779.38 and 90,137.70

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Solution

The fourth proportional to 150,590.02, 207,779.38 and 90,137.70 is: 124,369.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,590.02 : 207,779.38 = 90,137.70 : x
  2. Step 2: Convert to fraction form
    150,590.02/207,779.38 = 90,137.70/x
  3. Step 3: Cross multiply
    150,590.02x = 207,779.38 × 90,137.70
  4. Step 4: Simplify right side
    150,590.02x = 18,728,755,420.63
  5. Step 5: Solve for x
    x = 18,728,755,420.63/150,590.02
  6. Step 6: Final answer
    x = 124,369.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.