Home / 180,550.09-249,157.25-99,981.01

Finding the Fourth Proportional to 180,550.09, 249,157.25 and 99,981.01

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Solution

The fourth proportional to 180,550.09, 249,157.25 and 99,981.01 is: 137,972.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,550.09 : 249,157.25 = 99,981.01 : x
  2. Step 2: Convert to fraction form
    180,550.09/249,157.25 = 99,981.01/x
  3. Step 3: Cross multiply
    180,550.09x = 249,157.25 × 99,981.01
  4. Step 4: Simplify right side
    180,550.09x = 24,910,993,003.92
  5. Step 5: Solve for x
    x = 24,910,993,003.92/180,550.09
  6. Step 6: Final answer
    x = 137,972.75

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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.