Home / 161,483.60-222,909.36-121,313.88

Finding the Fourth Proportional to 161,483.60, 222,909.36 and 121,313.88

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Solution

The fourth proportional to 161,483.60, 222,909.36 and 121,313.88 is: 167,459.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,483.60 : 222,909.36 = 121,313.88 : x
  2. Step 2: Convert to fraction form
    161,483.60/222,909.36 = 121,313.88/x
  3. Step 3: Cross multiply
    161,483.60x = 222,909.36 × 121,313.88
  4. Step 4: Simplify right side
    161,483.60x = 27,041,999,349.92
  5. Step 5: Solve for x
    x = 27,041,999,349.92/161,483.60
  6. Step 6: Final answer
    x = 167,459.73

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1.5x scale

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.