Home / 162,567.36-243,679.50-87,667.11

Finding the Fourth Proportional to 162,567.36, 243,679.50 and 87,667.11

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Solution

The fourth proportional to 162,567.36, 243,679.50 and 87,667.11 is: 131,408.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,567.36 : 243,679.50 = 87,667.11 : x
  2. Step 2: Convert to fraction form
    162,567.36/243,679.50 = 87,667.11/x
  3. Step 3: Cross multiply
    162,567.36x = 243,679.50 × 87,667.11
  4. Step 4: Simplify right side
    162,567.36x = 21,362,677,531.25
  5. Step 5: Solve for x
    x = 21,362,677,531.25/162,567.36
  6. Step 6: Final answer
    x = 131,408.16

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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.