Home / 162,012.12-243,071.46-76,659.63

Finding the Fourth Proportional to 162,012.12, 243,071.46 and 76,659.63

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Solution

The fourth proportional to 162,012.12, 243,071.46 and 76,659.63 is: 115,014.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,012.12 : 243,071.46 = 76,659.63 : x
  2. Step 2: Convert to fraction form
    162,012.12/243,071.46 = 76,659.63/x
  3. Step 3: Cross multiply
    162,012.12x = 243,071.46 × 76,659.63
  4. Step 4: Simplify right side
    162,012.12x = 18,633,768,187.16
  5. Step 5: Solve for x
    x = 18,633,768,187.16/162,012.12
  6. Step 6: Final answer
    x = 115,014.66

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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.