Home / 130,453.35-179,946.05-86,250.80

Finding the Fourth Proportional to 130,453.35, 179,946.05 and 86,250.80

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Solution

The fourth proportional to 130,453.35, 179,946.05 and 86,250.80 is: 118,973.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,453.35 : 179,946.05 = 86,250.80 : x
  2. Step 2: Convert to fraction form
    130,453.35/179,946.05 = 86,250.80/x
  3. Step 3: Cross multiply
    130,453.35x = 179,946.05 × 86,250.80
  4. Step 4: Simplify right side
    130,453.35x = 15,520,490,769.34
  5. Step 5: Solve for x
    x = 15,520,490,769.34/130,453.35
  6. Step 6: Final answer
    x = 118,973.49

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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.