Home / 142,677.45-214,997.69-118,266.89

Finding the Fourth Proportional to 142,677.45, 214,997.69 and 118,266.89

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Solution

The fourth proportional to 142,677.45, 214,997.69 and 118,266.89 is: 178,213.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,677.45 : 214,997.69 = 118,266.89 : x
  2. Step 2: Convert to fraction form
    142,677.45/214,997.69 = 118,266.89/x
  3. Step 3: Cross multiply
    142,677.45x = 214,997.69 × 118,266.89
  4. Step 4: Simplify right side
    142,677.45x = 25,427,107,374.16
  5. Step 5: Solve for x
    x = 25,427,107,374.16/142,677.45
  6. Step 6: Final answer
    x = 178,213.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.