Home / 102,628.67-141,615.05-57,309.17

Finding the Fourth Proportional to 102,628.67, 141,615.05 and 57,309.17

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Solution

The fourth proportional to 102,628.67, 141,615.05 and 57,309.17 is: 79,079.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,628.67 : 141,615.05 = 57,309.17 : x
  2. Step 2: Convert to fraction form
    102,628.67/141,615.05 = 57,309.17/x
  3. Step 3: Cross multiply
    102,628.67x = 141,615.05 × 57,309.17
  4. Step 4: Simplify right side
    102,628.67x = 8,115,839,980.39
  5. Step 5: Solve for x
    x = 8,115,839,980.39/102,628.67
  6. Step 6: Final answer
    x = 79,079.66

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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.