Home / 189,513.10-261,185.54-157,076.90

Finding the Fourth Proportional to 189,513.10, 261,185.54 and 157,076.90

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Solution

The fourth proportional to 189,513.10, 261,185.54 and 157,076.90 is: 216,482.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,513.10 : 261,185.54 = 157,076.90 : x
  2. Step 2: Convert to fraction form
    189,513.10/261,185.54 = 157,076.90/x
  3. Step 3: Cross multiply
    189,513.10x = 261,185.54 × 157,076.90
  4. Step 4: Simplify right side
    189,513.10x = 41,026,215,014.24
  5. Step 5: Solve for x
    x = 41,026,215,014.24/189,513.10
  6. Step 6: Final answer
    x = 216,482.21

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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.