Home / 202,507.40-303,518.10-84,117.80

Finding the Fourth Proportional to 202,507.40, 303,518.10 and 84,117.80

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Solution

The fourth proportional to 202,507.40, 303,518.10 and 84,117.80 is: 126,075.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,507.40 : 303,518.10 = 84,117.80 : x
  2. Step 2: Convert to fraction form
    202,507.40/303,518.10 = 84,117.80/x
  3. Step 3: Cross multiply
    202,507.40x = 303,518.10 × 84,117.80
  4. Step 4: Simplify right side
    202,507.40x = 25,531,274,832.18
  5. Step 5: Solve for x
    x = 25,531,274,832.18/202,507.40
  6. Step 6: Final answer
    x = 126,075.76

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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.