Home / 213,507.42-320,010.96-87,068.76

Finding the Fourth Proportional to 213,507.42, 320,010.96 and 87,068.76

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Solution

The fourth proportional to 213,507.42, 320,010.96 and 87,068.76 is: 130,501.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,507.42 : 320,010.96 = 87,068.76 : x
  2. Step 2: Convert to fraction form
    213,507.42/320,010.96 = 87,068.76/x
  3. Step 3: Cross multiply
    213,507.42x = 320,010.96 × 87,068.76
  4. Step 4: Simplify right side
    213,507.42x = 27,862,957,473.61
  5. Step 5: Solve for x
    x = 27,862,957,473.61/213,507.42
  6. Step 6: Final answer
    x = 130,501.12

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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.