Home / 86,270.46-118,417.11-76,628.22

Finding the Fourth Proportional to 86,270.46, 118,417.11 and 76,628.22

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Solution

The fourth proportional to 86,270.46, 118,417.11 and 76,628.22 is: 105,181.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,270.46 : 118,417.11 = 76,628.22 : x
  2. Step 2: Convert to fraction form
    86,270.46/118,417.11 = 76,628.22/x
  3. Step 3: Cross multiply
    86,270.46x = 118,417.11 × 76,628.22
  4. Step 4: Simplify right side
    86,270.46x = 9,074,092,356.84
  5. Step 5: Solve for x
    x = 9,074,092,356.84/86,270.46
  6. Step 6: Final answer
    x = 105,181.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.