Home / 175,420.20-242,190.57-121,686.42

Finding the Fourth Proportional to 175,420.20, 242,190.57 and 121,686.42

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Solution

The fourth proportional to 175,420.20, 242,190.57 and 121,686.42 is: 168,004.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,420.20 : 242,190.57 = 121,686.42 : x
  2. Step 2: Convert to fraction form
    175,420.20/242,190.57 = 121,686.42/x
  3. Step 3: Cross multiply
    175,420.20x = 242,190.57 × 121,686.42
  4. Step 4: Simplify right side
    175,420.20x = 29,471,303,421.06
  5. Step 5: Solve for x
    x = 29,471,303,421.06/175,420.20
  6. Step 6: Final answer
    x = 168,004.05

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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.