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Finding the Fourth Proportional to 191,190.90, 286,824.66 and 107,070.72

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Solution

The fourth proportional to 191,190.90, 286,824.66 and 107,070.72 is: 160,627.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,190.90 : 286,824.66 = 107,070.72 : x
  2. Step 2: Convert to fraction form
    191,190.90/286,824.66 = 107,070.72/x
  3. Step 3: Cross multiply
    191,190.90x = 286,824.66 × 107,070.72
  4. Step 4: Simplify right side
    191,190.90x = 30,710,522,859.96
  5. Step 5: Solve for x
    x = 30,710,522,859.96/191,190.90
  6. Step 6: Final answer
    x = 160,627.53

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1.5x scale

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.