Home / 164,315.62-226,550.10-137,130.81

Finding the Fourth Proportional to 164,315.62, 226,550.10 and 137,130.81

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Solution

The fourth proportional to 164,315.62, 226,550.10 and 137,130.81 is: 189,069.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,315.62 : 226,550.10 = 137,130.81 : x
  2. Step 2: Convert to fraction form
    164,315.62/226,550.10 = 137,130.81/x
  3. Step 3: Cross multiply
    164,315.62x = 226,550.10 × 137,130.81
  4. Step 4: Simplify right side
    164,315.62x = 31,066,998,718.58
  5. Step 5: Solve for x
    x = 31,066,998,718.58/164,315.62
  6. Step 6: Final answer
    x = 189,069.05

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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.