Home / 123,531.36-170,459.64-69,816.36

Finding the Fourth Proportional to 123,531.36, 170,459.64 and 69,816.36

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Solution

The fourth proportional to 123,531.36, 170,459.64 and 69,816.36 is: 96,338.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,531.36 : 170,459.64 = 69,816.36 : x
  2. Step 2: Convert to fraction form
    123,531.36/170,459.64 = 69,816.36/x
  3. Step 3: Cross multiply
    123,531.36x = 170,459.64 × 69,816.36
  4. Step 4: Simplify right side
    123,531.36x = 11,900,871,591.71
  5. Step 5: Solve for x
    x = 11,900,871,591.71/123,531.36
  6. Step 6: Final answer
    x = 96,338.87

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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.