Home / 131,539.02-181,523.60-71,109.70

Finding the Fourth Proportional to 131,539.02, 181,523.60 and 71,109.70

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Solution

The fourth proportional to 131,539.02, 181,523.60 and 71,109.70 is: 98,131.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,539.02 : 181,523.60 = 71,109.70 : x
  2. Step 2: Convert to fraction form
    131,539.02/181,523.60 = 71,109.70/x
  3. Step 3: Cross multiply
    131,539.02x = 181,523.60 × 71,109.70
  4. Step 4: Simplify right side
    131,539.02x = 12,908,088,738.92
  5. Step 5: Solve for x
    x = 12,908,088,738.92/131,539.02
  6. Step 6: Final answer
    x = 98,131.25

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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.