Home / 147,263.28-203,249.96-86,830.32

Finding the Fourth Proportional to 147,263.28, 203,249.96 and 86,830.32

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Solution

The fourth proportional to 147,263.28, 203,249.96 and 86,830.32 is: 119,841.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,263.28 : 203,249.96 = 86,830.32 : x
  2. Step 2: Convert to fraction form
    147,263.28/203,249.96 = 86,830.32/x
  3. Step 3: Cross multiply
    147,263.28x = 203,249.96 × 86,830.32
  4. Step 4: Simplify right side
    147,263.28x = 17,648,259,066.79
  5. Step 5: Solve for x
    x = 17,648,259,066.79/147,263.28
  6. Step 6: Final answer
    x = 119,841.55

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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.