Home / 130,018.06-179,407.28-72,650.17

Finding the Fourth Proportional to 130,018.06, 179,407.28 and 72,650.17

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Solution

The fourth proportional to 130,018.06, 179,407.28 and 72,650.17 is: 100,247.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,018.06 : 179,407.28 = 72,650.17 : x
  2. Step 2: Convert to fraction form
    130,018.06/179,407.28 = 72,650.17/x
  3. Step 3: Cross multiply
    130,018.06x = 179,407.28 × 72,650.17
  4. Step 4: Simplify right side
    130,018.06x = 13,033,968,583.63
  5. Step 5: Solve for x
    x = 13,033,968,583.63/130,018.06
  6. Step 6: Final answer
    x = 100,247.37

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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.