Home / 123,455.72-170,368.10-69,758.12

Finding the Fourth Proportional to 123,455.72, 170,368.10 and 69,758.12

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Solution

The fourth proportional to 123,455.72, 170,368.10 and 69,758.12 is: 96,265.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,455.72 : 170,368.10 = 69,758.12 : x
  2. Step 2: Convert to fraction form
    123,455.72/170,368.10 = 69,758.12/x
  3. Step 3: Cross multiply
    123,455.72x = 170,368.10 × 69,758.12
  4. Step 4: Simplify right side
    123,455.72x = 11,884,558,363.97
  5. Step 5: Solve for x
    x = 11,884,558,363.97/123,455.72
  6. Step 6: Final answer
    x = 96,265.76

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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.