Home / 152,913.84-211,019.64-85,845.36

Finding the Fourth Proportional to 152,913.84, 211,019.64 and 85,845.36

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Solution

The fourth proportional to 152,913.84, 211,019.64 and 85,845.36 is: 118,465.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,913.84 : 211,019.64 = 85,845.36 : x
  2. Step 2: Convert to fraction form
    152,913.84/211,019.64 = 85,845.36/x
  3. Step 3: Cross multiply
    152,913.84x = 211,019.64 × 85,845.36
  4. Step 4: Simplify right side
    152,913.84x = 18,115,056,962.87
  5. Step 5: Solve for x
    x = 18,115,056,962.87/152,913.84
  6. Step 6: Final answer
    x = 118,465.78

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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.