Home / 145,533.42-200,847.60-81,875.88

Finding the Fourth Proportional to 145,533.42, 200,847.60 and 81,875.88

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Solution

The fourth proportional to 145,533.42, 200,847.60 and 81,875.88 is: 112,995.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,533.42 : 200,847.60 = 81,875.88 : x
  2. Step 2: Convert to fraction form
    145,533.42/200,847.60 = 81,875.88/x
  3. Step 3: Cross multiply
    145,533.42x = 200,847.60 × 81,875.88
  4. Step 4: Simplify right side
    145,533.42x = 16,444,573,995.89
  5. Step 5: Solve for x
    x = 16,444,573,995.89/145,533.42
  6. Step 6: Final answer
    x = 112,995.17

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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.