Home / 130,409.82-179,953.10-103,617.18

Finding the Fourth Proportional to 130,409.82, 179,953.10 and 103,617.18

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Solution

The fourth proportional to 130,409.82, 179,953.10 and 103,617.18 is: 142,981.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,409.82 : 179,953.10 = 103,617.18 : x
  2. Step 2: Convert to fraction form
    130,409.82/179,953.10 = 103,617.18/x
  3. Step 3: Cross multiply
    130,409.82x = 179,953.10 × 103,617.18
  4. Step 4: Simplify right side
    130,409.82x = 18,646,232,754.26
  5. Step 5: Solve for x
    x = 18,646,232,754.26/130,409.82
  6. Step 6: Final answer
    x = 142,981.81

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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.