Home / 102,666.56-153,785.25-82,567.35

Finding the Fourth Proportional to 102,666.56, 153,785.25 and 82,567.35

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Solution

The fourth proportional to 102,666.56, 153,785.25 and 82,567.35 is: 123,678.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,666.56 : 153,785.25 = 82,567.35 : x
  2. Step 2: Convert to fraction form
    102,666.56/153,785.25 = 82,567.35/x
  3. Step 3: Cross multiply
    102,666.56x = 153,785.25 × 82,567.35
  4. Step 4: Simplify right side
    102,666.56x = 12,697,640,561.59
  5. Step 5: Solve for x
    x = 12,697,640,561.59/102,666.56
  6. Step 6: Final answer
    x = 123,678.45

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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.