Home / 115,649.64-158,983.20-99,457.56

Finding the Fourth Proportional to 115,649.64, 158,983.20 and 99,457.56

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Solution

The fourth proportional to 115,649.64, 158,983.20 and 99,457.56 is: 136,724.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,649.64 : 158,983.20 = 99,457.56 : x
  2. Step 2: Convert to fraction form
    115,649.64/158,983.20 = 99,457.56/x
  3. Step 3: Cross multiply
    115,649.64x = 158,983.20 × 99,457.56
  4. Step 4: Simplify right side
    115,649.64x = 15,812,081,152.99
  5. Step 5: Solve for x
    x = 15,812,081,152.99/115,649.64
  6. Step 6: Final answer
    x = 136,724.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.