Home / 240,124.83-331,385.03-138,165.80

Finding the Fourth Proportional to 240,124.83, 331,385.03 and 138,165.80

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Solution

The fourth proportional to 240,124.83, 331,385.03 and 138,165.80 is: 190,676.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,124.83 : 331,385.03 = 138,165.80 : x
  2. Step 2: Convert to fraction form
    240,124.83/331,385.03 = 138,165.80/x
  3. Step 3: Cross multiply
    240,124.83x = 331,385.03 × 138,165.80
  4. Step 4: Simplify right side
    240,124.83x = 45,786,075,430.22
  5. Step 5: Solve for x
    x = 45,786,075,430.22/240,124.83
  6. Step 6: Final answer
    x = 190,676.14

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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.