Home / 121,586.69-182,444.25-86,276.18

Finding the Fourth Proportional to 121,586.69, 182,444.25 and 86,276.18

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Solution

The fourth proportional to 121,586.69, 182,444.25 and 86,276.18 is: 129,459.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,586.69 : 182,444.25 = 86,276.18 : x
  2. Step 2: Convert to fraction form
    121,586.69/182,444.25 = 86,276.18/x
  3. Step 3: Cross multiply
    121,586.69x = 182,444.25 × 86,276.18
  4. Step 4: Simplify right side
    121,586.69x = 15,740,592,952.97
  5. Step 5: Solve for x
    x = 15,740,592,952.97/121,586.69
  6. Step 6: Final answer
    x = 129,459.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.