Home / 125,923.10-188,884.65-72,706.10

Finding the Fourth Proportional to 125,923.10, 188,884.65 and 72,706.10

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Solution

The fourth proportional to 125,923.10, 188,884.65 and 72,706.10 is: 109,059.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,923.10 : 188,884.65 = 72,706.10 : x
  2. Step 2: Convert to fraction form
    125,923.10/188,884.65 = 72,706.10/x
  3. Step 3: Cross multiply
    125,923.10x = 188,884.65 × 72,706.10
  4. Step 4: Simplify right side
    125,923.10x = 13,733,066,251.37
  5. Step 5: Solve for x
    x = 13,733,066,251.37/125,923.10
  6. Step 6: Final answer
    x = 109,059.15

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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.