Home / 98,091.86-135,407.45-66,303.82

Finding the Fourth Proportional to 98,091.86, 135,407.45 and 66,303.82

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Solution

The fourth proportional to 98,091.86, 135,407.45 and 66,303.82 is: 91,526.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,091.86 : 135,407.45 = 66,303.82 : x
  2. Step 2: Convert to fraction form
    98,091.86/135,407.45 = 66,303.82/x
  3. Step 3: Cross multiply
    98,091.86x = 135,407.45 × 66,303.82
  4. Step 4: Simplify right side
    98,091.86x = 8,978,031,191.46
  5. Step 5: Solve for x
    x = 8,978,031,191.46/98,091.86
  6. Step 6: Final answer
    x = 91,526.77

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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.