Home / 191,528.96-264,190.21-137,728.76

Finding the Fourth Proportional to 191,528.96, 264,190.21 and 137,728.76

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Solution

The fourth proportional to 191,528.96, 264,190.21 and 137,728.76 is: 189,979.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,528.96 : 264,190.21 = 137,728.76 : x
  2. Step 2: Convert to fraction form
    191,528.96/264,190.21 = 137,728.76/x
  3. Step 3: Cross multiply
    191,528.96x = 264,190.21 × 137,728.76
  4. Step 4: Simplify right side
    191,528.96x = 36,386,588,362.17
  5. Step 5: Solve for x
    x = 36,386,588,362.17/191,528.96
  6. Step 6: Final answer
    x = 189,979.57

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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.