Home / 210,975.13-291,145.98-115,487.86

Finding the Fourth Proportional to 210,975.13, 291,145.98 and 115,487.86

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Solution

The fourth proportional to 210,975.13, 291,145.98 and 115,487.86 is: 159,373.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,975.13 : 291,145.98 = 115,487.86 : x
  2. Step 2: Convert to fraction form
    210,975.13/291,145.98 = 115,487.86/x
  3. Step 3: Cross multiply
    210,975.13x = 291,145.98 × 115,487.86
  4. Step 4: Simplify right side
    210,975.13x = 33,623,826,177.80
  5. Step 5: Solve for x
    x = 33,623,826,177.80/210,975.13
  6. Step 6: Final answer
    x = 159,373.41

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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.