Home / 133,385.80-184,088.28-76,808.20

Finding the Fourth Proportional to 133,385.80, 184,088.28 and 76,808.20

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Solution

The fourth proportional to 133,385.80, 184,088.28 and 76,808.20 is: 106,004.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,385.80 : 184,088.28 = 76,808.20 : x
  2. Step 2: Convert to fraction form
    133,385.80/184,088.28 = 76,808.20/x
  3. Step 3: Cross multiply
    133,385.80x = 184,088.28 × 76,808.20
  4. Step 4: Simplify right side
    133,385.80x = 14,139,489,427.90
  5. Step 5: Solve for x
    x = 14,139,489,427.90/133,385.80
  6. Step 6: Final answer
    x = 106,004.46

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1.5x scale

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.