Home / 145,274.64-200,457.18-81,600.24

Finding the Fourth Proportional to 145,274.64, 200,457.18 and 81,600.24

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Solution

The fourth proportional to 145,274.64, 200,457.18 and 81,600.24 is: 112,596.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,274.64 : 200,457.18 = 81,600.24 : x
  2. Step 2: Convert to fraction form
    145,274.64/200,457.18 = 81,600.24/x
  3. Step 3: Cross multiply
    145,274.64x = 200,457.18 × 81,600.24
  4. Step 4: Simplify right side
    145,274.64x = 16,357,353,997.72
  5. Step 5: Solve for x
    x = 16,357,353,997.72/145,274.64
  6. Step 6: Final answer
    x = 112,596.07

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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.