Home / 134,553.04-185,723.40-77,989.84

Finding the Fourth Proportional to 134,553.04, 185,723.40 and 77,989.84

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Solution

The fourth proportional to 134,553.04, 185,723.40 and 77,989.84 is: 107,649.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,553.04 : 185,723.40 = 77,989.84 : x
  2. Step 2: Convert to fraction form
    134,553.04/185,723.40 = 77,989.84/x
  3. Step 3: Cross multiply
    134,553.04x = 185,723.40 × 77,989.84
  4. Step 4: Simplify right side
    134,553.04x = 14,484,538,250.26
  5. Step 5: Solve for x
    x = 14,484,538,250.26/134,553.04
  6. Step 6: Final answer
    x = 107,649.28

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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.