Home / 98,187.12-135,493.40-55,740.08

Finding the Fourth Proportional to 98,187.12, 135,493.40 and 55,740.08

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Solution

The fourth proportional to 98,187.12, 135,493.40 and 55,740.08 is: 76,918.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,187.12 : 135,493.40 = 55,740.08 : x
  2. Step 2: Convert to fraction form
    98,187.12/135,493.40 = 55,740.08/x
  3. Step 3: Cross multiply
    98,187.12x = 135,493.40 × 55,740.08
  4. Step 4: Simplify right side
    98,187.12x = 7,552,412,955.47
  5. Step 5: Solve for x
    x = 7,552,412,955.47/98,187.12
  6. Step 6: Final answer
    x = 76,918.57

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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.