Home / 121,685.74-182,539.44-42,800.68

Finding the Fourth Proportional to 121,685.74, 182,539.44 and 42,800.68

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Solution

The fourth proportional to 121,685.74, 182,539.44 and 42,800.68 is: 64,204.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,685.74 : 182,539.44 = 42,800.68 : x
  2. Step 2: Convert to fraction form
    121,685.74/182,539.44 = 42,800.68/x
  3. Step 3: Cross multiply
    121,685.74x = 182,539.44 × 42,800.68
  4. Step 4: Simplify right side
    121,685.74x = 7,812,812,158.82
  5. Step 5: Solve for x
    x = 7,812,812,158.82/121,685.74
  6. Step 6: Final answer
    x = 64,204.83

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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.