Home / 130,512.06-180,063.81-73,143

Finding the Fourth Proportional to 130,512.06, 180,063.81 and 73,143

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Solution

The fourth proportional to 130,512.06, 180,063.81 and 73,143 is: 100,913.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,512.06 : 180,063.81 = 73,143 : x
  2. Step 2: Convert to fraction form
    130,512.06/180,063.81 = 73,143/x
  3. Step 3: Cross multiply
    130,512.06x = 180,063.81 × 73,143
  4. Step 4: Simplify right side
    130,512.06x = 13,170,407,254.83
  5. Step 5: Solve for x
    x = 13,170,407,254.83/130,512.06
  6. Step 6: Final answer
    x = 100,913.34

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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.