Home / 133,011.02-183,497.28-87,630.78

Finding the Fourth Proportional to 133,011.02, 183,497.28 and 87,630.78

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Solution

The fourth proportional to 133,011.02, 183,497.28 and 87,630.78 is: 120,892.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,011.02 : 183,497.28 = 87,630.78 : x
  2. Step 2: Convert to fraction form
    133,011.02/183,497.28 = 87,630.78/x
  3. Step 3: Cross multiply
    133,011.02x = 183,497.28 × 87,630.78
  4. Step 4: Simplify right side
    133,011.02x = 16,080,009,774.28
  5. Step 5: Solve for x
    x = 16,080,009,774.28/133,011.02
  6. Step 6: Final answer
    x = 120,892.31

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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.