Home / 115,652.18-159,600.27-64,666.76

Finding the Fourth Proportional to 115,652.18, 159,600.27 and 64,666.76

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Solution

The fourth proportional to 115,652.18, 159,600.27 and 64,666.76 is: 89,240.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,652.18 : 159,600.27 = 64,666.76 : x
  2. Step 2: Convert to fraction form
    115,652.18/159,600.27 = 64,666.76/x
  3. Step 3: Cross multiply
    115,652.18x = 159,600.27 × 64,666.76
  4. Step 4: Simplify right side
    115,652.18x = 10,320,832,356.03
  5. Step 5: Solve for x
    x = 10,320,832,356.03/115,652.18
  6. Step 6: Final answer
    x = 89,240.28

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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.