Home / 173,621.40-260,432.10-121,090.20

Finding the Fourth Proportional to 173,621.40, 260,432.10 and 121,090.20

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Solution

The fourth proportional to 173,621.40, 260,432.10 and 121,090.20 is: 181,635.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,621.40 : 260,432.10 = 121,090.20 : x
  2. Step 2: Convert to fraction form
    173,621.40/260,432.10 = 121,090.20/x
  3. Step 3: Cross multiply
    173,621.40x = 260,432.10 × 121,090.20
  4. Step 4: Simplify right side
    173,621.40x = 31,535,775,075.42
  5. Step 5: Solve for x
    x = 31,535,775,075.42/173,621.40
  6. Step 6: Final answer
    x = 181,635.30

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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.