Home / 123,300.36-170,155.08-69,587.64

Finding the Fourth Proportional to 123,300.36, 170,155.08 and 69,587.64

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Solution

The fourth proportional to 123,300.36, 170,155.08 and 69,587.64 is: 96,031.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,300.36 : 170,155.08 = 69,587.64 : x
  2. Step 2: Convert to fraction form
    123,300.36/170,155.08 = 69,587.64/x
  3. Step 3: Cross multiply
    123,300.36x = 170,155.08 × 69,587.64
  4. Step 4: Simplify right side
    123,300.36x = 11,840,690,451.21
  5. Step 5: Solve for x
    x = 11,840,690,451.21/123,300.36
  6. Step 6: Final answer
    x = 96,031.27

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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.