Home / 124,736.34-187,133.73-85,312.02

Finding the Fourth Proportional to 124,736.34, 187,133.73 and 85,312.02

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Solution

The fourth proportional to 124,736.34, 187,133.73 and 85,312.02 is: 127,988.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,736.34 : 187,133.73 = 85,312.02 : x
  2. Step 2: Convert to fraction form
    124,736.34/187,133.73 = 85,312.02/x
  3. Step 3: Cross multiply
    124,736.34x = 187,133.73 × 85,312.02
  4. Step 4: Simplify right side
    124,736.34x = 15,964,756,516.43
  5. Step 5: Solve for x
    x = 15,964,756,516.43/124,736.34
  6. Step 6: Final answer
    x = 127,988.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.