Home / 131,820.56-181,925.36-75,240.44

Finding the Fourth Proportional to 131,820.56, 181,925.36 and 75,240.44

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Solution

The fourth proportional to 131,820.56, 181,925.36 and 75,240.44 is: 103,839.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,820.56 : 181,925.36 = 75,240.44 : x
  2. Step 2: Convert to fraction form
    131,820.56/181,925.36 = 75,240.44/x
  3. Step 3: Cross multiply
    131,820.56x = 181,925.36 × 75,240.44
  4. Step 4: Simplify right side
    131,820.56x = 13,688,144,133.56
  5. Step 5: Solve for x
    x = 13,688,144,133.56/131,820.56
  6. Step 6: Final answer
    x = 103,839.22

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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.