Home / 103,538.68-142,887.68-58,218.58

Finding the Fourth Proportional to 103,538.68, 142,887.68 and 58,218.58

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Solution

The fourth proportional to 103,538.68, 142,887.68 and 58,218.58 is: 80,344.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,538.68 : 142,887.68 = 58,218.58 : x
  2. Step 2: Convert to fraction form
    103,538.68/142,887.68 = 58,218.58/x
  3. Step 3: Cross multiply
    103,538.68x = 142,887.68 × 58,218.58
  4. Step 4: Simplify right side
    103,538.68x = 8,318,717,829.09
  5. Step 5: Solve for x
    x = 8,318,717,829.09/103,538.68
  6. Step 6: Final answer
    x = 80,344.06

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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.