Home / 131,543.58-181,529.90-71,114.28

Finding the Fourth Proportional to 131,543.58, 181,529.90 and 71,114.28

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Solution

The fourth proportional to 131,543.58, 181,529.90 and 71,114.28 is: 98,137.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,543.58 : 181,529.90 = 71,114.28 : x
  2. Step 2: Convert to fraction form
    131,543.58/181,529.90 = 71,114.28/x
  3. Step 3: Cross multiply
    131,543.58x = 181,529.90 × 71,114.28
  4. Step 4: Simplify right side
    131,543.58x = 12,909,368,136.97
  5. Step 5: Solve for x
    x = 12,909,368,136.97/131,543.58
  6. Step 6: Final answer
    x = 98,137.58

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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.