Home / 103,388.28-142,678.31-58,066.35

Finding the Fourth Proportional to 103,388.28, 142,678.31 and 58,066.35

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Solution

The fourth proportional to 103,388.28, 142,678.31 and 58,066.35 is: 80,132.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,388.28 : 142,678.31 = 58,066.35 : x
  2. Step 2: Convert to fraction form
    103,388.28/142,678.31 = 58,066.35/x
  3. Step 3: Cross multiply
    103,388.28x = 142,678.31 × 58,066.35
  4. Step 4: Simplify right side
    103,388.28x = 8,284,808,395.54
  5. Step 5: Solve for x
    x = 8,284,808,395.54/103,388.28
  6. Step 6: Final answer
    x = 80,132.96

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1.5x scale

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.