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Finding the Fourth Proportional to 136,095.72, 187,820.58 and 75,679.86

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Solution

The fourth proportional to 136,095.72, 187,820.58 and 75,679.86 is: 104,442.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,095.72 : 187,820.58 = 75,679.86 : x
  2. Step 2: Convert to fraction form
    136,095.72/187,820.58 = 75,679.86/x
  3. Step 3: Cross multiply
    136,095.72x = 187,820.58 × 75,679.86
  4. Step 4: Simplify right side
    136,095.72x = 14,214,235,199.52
  5. Step 5: Solve for x
    x = 14,214,235,199.52/136,095.72
  6. Step 6: Final answer
    x = 104,442.93

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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.