Home / 153,123.09-211,314.20-92,704.65

Finding the Fourth Proportional to 153,123.09, 211,314.20 and 92,704.65

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Solution

The fourth proportional to 153,123.09, 211,314.20 and 92,704.65 is: 127,935.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,123.09 : 211,314.20 = 92,704.65 : x
  2. Step 2: Convert to fraction form
    153,123.09/211,314.20 = 92,704.65/x
  3. Step 3: Cross multiply
    153,123.09x = 211,314.20 × 92,704.65
  4. Step 4: Simplify right side
    153,123.09x = 19,589,808,487.51
  5. Step 5: Solve for x
    x = 19,589,808,487.51/153,123.09
  6. Step 6: Final answer
    x = 127,935.04

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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.