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Finding the Fourth Proportional to 114,205.38, 157,753.98 and 87,675.72

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Solution

The fourth proportional to 114,205.38, 157,753.98 and 87,675.72 is: 121,108.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,205.38 : 157,753.98 = 87,675.72 : x
  2. Step 2: Convert to fraction form
    114,205.38/157,753.98 = 87,675.72/x
  3. Step 3: Cross multiply
    114,205.38x = 157,753.98 × 87,675.72
  4. Step 4: Simplify right side
    114,205.38x = 13,831,193,779.37
  5. Step 5: Solve for x
    x = 13,831,193,779.37/114,205.38
  6. Step 6: Final answer
    x = 121,108.08

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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.