Home / 86,285.46-118,437.66-76,643.22

Finding the Fourth Proportional to 86,285.46, 118,437.66 and 76,643.22

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Solution

The fourth proportional to 86,285.46, 118,437.66 and 76,643.22 is: 105,202.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,285.46 : 118,437.66 = 76,643.22 : x
  2. Step 2: Convert to fraction form
    86,285.46/118,437.66 = 76,643.22/x
  3. Step 3: Cross multiply
    86,285.46x = 118,437.66 × 76,643.22
  4. Step 4: Simplify right side
    86,285.46x = 9,077,443,631.67
  5. Step 5: Solve for x
    x = 9,077,443,631.67/86,285.46
  6. Step 6: Final answer
    x = 105,202.47

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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.