Home / 130,609.36-180,255.81-88,254.46

Finding the Fourth Proportional to 130,609.36, 180,255.81 and 88,254.46

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Solution

The fourth proportional to 130,609.36, 180,255.81 and 88,254.46 is: 121,801.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,609.36 : 180,255.81 = 88,254.46 : x
  2. Step 2: Convert to fraction form
    130,609.36/180,255.81 = 88,254.46/x
  3. Step 3: Cross multiply
    130,609.36x = 180,255.81 × 88,254.46
  4. Step 4: Simplify right side
    130,609.36x = 15,908,379,173.41
  5. Step 5: Solve for x
    x = 15,908,379,173.41/130,609.36
  6. Step 6: Final answer
    x = 121,801.22

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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.