Home / 102,669.39-141,679.53-57,347.19

Finding the Fourth Proportional to 102,669.39, 141,679.53 and 57,347.19

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Solution

The fourth proportional to 102,669.39, 141,679.53 and 57,347.19 is: 79,136.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,669.39 : 141,679.53 = 57,347.19 : x
  2. Step 2: Convert to fraction form
    102,669.39/141,679.53 = 57,347.19/x
  3. Step 3: Cross multiply
    102,669.39x = 141,679.53 × 57,347.19
  4. Step 4: Simplify right side
    102,669.39x = 8,124,922,926.02
  5. Step 5: Solve for x
    x = 8,124,922,926.02/102,669.39
  6. Step 6: Final answer
    x = 79,136.76

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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.