Home / 189,633.02-284,282.55-77,407.58

Finding the Fourth Proportional to 189,633.02, 284,282.55 and 77,407.58

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Solution

The fourth proportional to 189,633.02, 284,282.55 and 77,407.58 is: 116,043.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,633.02 : 284,282.55 = 77,407.58 : x
  2. Step 2: Convert to fraction form
    189,633.02/284,282.55 = 77,407.58/x
  3. Step 3: Cross multiply
    189,633.02x = 284,282.55 × 77,407.58
  4. Step 4: Simplify right side
    189,633.02x = 22,005,624,942.44
  5. Step 5: Solve for x
    x = 22,005,624,942.44/189,633.02
  6. Step 6: Final answer
    x = 116,043.22

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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.