Home / 143,068.68-197,439.93-86,447.25

Finding the Fourth Proportional to 143,068.68, 197,439.93 and 86,447.25

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Solution

The fourth proportional to 143,068.68, 197,439.93 and 86,447.25 is: 119,300.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,068.68 : 197,439.93 = 86,447.25 : x
  2. Step 2: Convert to fraction form
    143,068.68/197,439.93 = 86,447.25/x
  3. Step 3: Cross multiply
    143,068.68x = 197,439.93 × 86,447.25
  4. Step 4: Simplify right side
    143,068.68x = 17,068,138,988.69
  5. Step 5: Solve for x
    x = 17,068,138,988.69/143,068.68
  6. Step 6: Final answer
    x = 119,300.32

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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.