Home / 103,178.81-142,388.24-60,157.10

Finding the Fourth Proportional to 103,178.81, 142,388.24 and 60,157.10

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Solution

The fourth proportional to 103,178.81, 142,388.24 and 60,157.10 is: 83,017.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,178.81 : 142,388.24 = 60,157.10 : x
  2. Step 2: Convert to fraction form
    103,178.81/142,388.24 = 60,157.10/x
  3. Step 3: Cross multiply
    103,178.81x = 142,388.24 × 60,157.10
  4. Step 4: Simplify right side
    103,178.81x = 8,565,662,579.78
  5. Step 5: Solve for x
    x = 8,565,662,579.78/103,178.81
  6. Step 6: Final answer
    x = 83,017.66

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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.