Home / 109,666.72-151,341.11-64,345.47

Finding the Fourth Proportional to 109,666.72, 151,341.11 and 64,345.47

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Solution

The fourth proportional to 109,666.72, 151,341.11 and 64,345.47 is: 88,797.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,666.72 : 151,341.11 = 64,345.47 : x
  2. Step 2: Convert to fraction form
    109,666.72/151,341.11 = 64,345.47/x
  3. Step 3: Cross multiply
    109,666.72x = 151,341.11 × 64,345.47
  4. Step 4: Simplify right side
    109,666.72x = 9,738,114,940.96
  5. Step 5: Solve for x
    x = 9,738,114,940.96/109,666.72
  6. Step 6: Final answer
    x = 88,797.36

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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.