Home / 123,512.34-170,455.68-69,802.32

Finding the Fourth Proportional to 123,512.34, 170,455.68 and 69,802.32

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Solution

The fourth proportional to 123,512.34, 170,455.68 and 69,802.32 is: 96,332.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,512.34 : 170,455.68 = 69,802.32 : x
  2. Step 2: Convert to fraction form
    123,512.34/170,455.68 = 69,802.32/x
  3. Step 3: Cross multiply
    123,512.34x = 170,455.68 × 69,802.32
  4. Step 4: Simplify right side
    123,512.34x = 11,898,201,921.18
  5. Step 5: Solve for x
    x = 11,898,201,921.18/123,512.34
  6. Step 6: Final answer
    x = 96,332.09

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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.