Home / 157,729.19-217,640.58-93,189.51

Finding the Fourth Proportional to 157,729.19, 217,640.58 and 93,189.51

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Solution

The fourth proportional to 157,729.19, 217,640.58 and 93,189.51 is: 128,586.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,729.19 : 217,640.58 = 93,189.51 : x
  2. Step 2: Convert to fraction form
    157,729.19/217,640.58 = 93,189.51/x
  3. Step 3: Cross multiply
    157,729.19x = 217,640.58 × 93,189.51
  4. Step 4: Simplify right side
    157,729.19x = 20,281,819,006.32
  5. Step 5: Solve for x
    x = 20,281,819,006.32/157,729.19
  6. Step 6: Final answer
    x = 128,586.34

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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.