Home / 130,181.51-179,578.13-75,727.55

Finding the Fourth Proportional to 130,181.51, 179,578.13 and 75,727.55

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Solution

The fourth proportional to 130,181.51, 179,578.13 and 75,727.55 is: 104,461.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,181.51 : 179,578.13 = 75,727.55 : x
  2. Step 2: Convert to fraction form
    130,181.51/179,578.13 = 75,727.55/x
  3. Step 3: Cross multiply
    130,181.51x = 179,578.13 × 75,727.55
  4. Step 4: Simplify right side
    130,181.51x = 13,599,011,818.48
  5. Step 5: Solve for x
    x = 13,599,011,818.48/130,181.51
  6. Step 6: Final answer
    x = 104,461.93

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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.