Home / 135,684.04-187,223.70-77,536.48

Finding the Fourth Proportional to 135,684.04, 187,223.70 and 77,536.48

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Solution

The fourth proportional to 135,684.04, 187,223.70 and 77,536.48 is: 106,988.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,684.04 : 187,223.70 = 77,536.48 : x
  2. Step 2: Convert to fraction form
    135,684.04/187,223.70 = 77,536.48/x
  3. Step 3: Cross multiply
    135,684.04x = 187,223.70 × 77,536.48
  4. Step 4: Simplify right side
    135,684.04x = 14,516,666,670.58
  5. Step 5: Solve for x
    x = 14,516,666,670.58/135,684.04
  6. Step 6: Final answer
    x = 106,988.76

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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.