Home / 98,089.11-135,403.65-66,301.07

Finding the Fourth Proportional to 98,089.11, 135,403.65 and 66,301.07

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Solution

The fourth proportional to 98,089.11, 135,403.65 and 66,301.07 is: 91,522.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,089.11 : 135,403.65 = 66,301.07 : x
  2. Step 2: Convert to fraction form
    98,089.11/135,403.65 = 66,301.07/x
  3. Step 3: Cross multiply
    98,089.11x = 135,403.65 × 66,301.07
  4. Step 4: Simplify right side
    98,089.11x = 8,977,406,199.89
  5. Step 5: Solve for x
    x = 8,977,406,199.89/98,089.11
  6. Step 6: Final answer
    x = 91,522.97

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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.