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Finding the Fourth Proportional to 143,528.94, 215,315.28 and 73,384.56

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Solution

The fourth proportional to 143,528.94, 215,315.28 and 73,384.56 is: 110,088.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,528.94 : 215,315.28 = 73,384.56 : x
  2. Step 2: Convert to fraction form
    143,528.94/215,315.28 = 73,384.56/x
  3. Step 3: Cross multiply
    143,528.94x = 215,315.28 × 73,384.56
  4. Step 4: Simplify right side
    143,528.94x = 15,800,817,084.08
  5. Step 5: Solve for x
    x = 15,800,817,084.08/143,528.94
  6. Step 6: Final answer
    x = 110,088.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.