Home / 231,953.04-320,089.76-136,465.88

Finding the Fourth Proportional to 231,953.04, 320,089.76 and 136,465.88

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Solution

The fourth proportional to 231,953.04, 320,089.76 and 136,465.88 is: 188,319.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,953.04 : 320,089.76 = 136,465.88 : x
  2. Step 2: Convert to fraction form
    231,953.04/320,089.76 = 136,465.88/x
  3. Step 3: Cross multiply
    231,953.04x = 320,089.76 × 136,465.88
  4. Step 4: Simplify right side
    231,953.04x = 43,681,330,777.39
  5. Step 5: Solve for x
    x = 43,681,330,777.39/231,953.04
  6. Step 6: Final answer
    x = 188,319.72

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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.