Home / 131,627.08-181,649.54-72,011.08

Finding the Fourth Proportional to 131,627.08, 181,649.54 and 72,011.08

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Solution

The fourth proportional to 131,627.08, 181,649.54 and 72,011.08 is: 99,377.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,627.08 : 181,649.54 = 72,011.08 : x
  2. Step 2: Convert to fraction form
    131,627.08/181,649.54 = 72,011.08/x
  3. Step 3: Cross multiply
    131,627.08x = 181,649.54 × 72,011.08
  4. Step 4: Simplify right side
    131,627.08x = 13,080,779,556.90
  5. Step 5: Solve for x
    x = 13,080,779,556.90/131,627.08
  6. Step 6: Final answer
    x = 99,377.57

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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.