Home / 186,225.70-257,019.14-109,720.34

Finding the Fourth Proportional to 186,225.70, 257,019.14 and 109,720.34

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Solution

The fourth proportional to 186,225.70, 257,019.14 and 109,720.34 is: 151,430.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,225.70 : 257,019.14 = 109,720.34 : x
  2. Step 2: Convert to fraction form
    186,225.70/257,019.14 = 109,720.34/x
  3. Step 3: Cross multiply
    186,225.70x = 257,019.14 × 109,720.34
  4. Step 4: Simplify right side
    186,225.70x = 28,200,227,427.31
  5. Step 5: Solve for x
    x = 28,200,227,427.31/186,225.70
  6. Step 6: Final answer
    x = 151,430.37

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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.