Home / 210,972.60-291,130.92-115,460.82

Finding the Fourth Proportional to 210,972.60, 291,130.92 and 115,460.82

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Solution

The fourth proportional to 210,972.60, 291,130.92 and 115,460.82 is: 159,329.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,972.60 : 291,130.92 = 115,460.82 : x
  2. Step 2: Convert to fraction form
    210,972.60/291,130.92 = 115,460.82/x
  3. Step 3: Cross multiply
    210,972.60x = 291,130.92 × 115,460.82
  4. Step 4: Simplify right side
    210,972.60x = 33,614,214,750.55
  5. Step 5: Solve for x
    x = 33,614,214,750.55/210,972.60
  6. Step 6: Final answer
    x = 159,329.76

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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.