Home / 103,412.12-142,686.58-60,372.06

Finding the Fourth Proportional to 103,412.12, 142,686.58 and 60,372.06

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Solution

The fourth proportional to 103,412.12, 142,686.58 and 60,372.06 is: 83,300.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,412.12 : 142,686.58 = 60,372.06 : x
  2. Step 2: Convert to fraction form
    103,412.12/142,686.58 = 60,372.06/x
  3. Step 3: Cross multiply
    103,412.12x = 142,686.58 × 60,372.06
  4. Step 4: Simplify right side
    103,412.12x = 8,614,282,768.95
  5. Step 5: Solve for x
    x = 8,614,282,768.95/103,412.12
  6. Step 6: Final answer
    x = 83,300.51

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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.