Home / 130,266.71-179,771.25-72,905.58

Finding the Fourth Proportional to 130,266.71, 179,771.25 and 72,905.58

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Solution

The fourth proportional to 130,266.71, 179,771.25 and 72,905.58 is: 100,611.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,266.71 : 179,771.25 = 72,905.58 : x
  2. Step 2: Convert to fraction form
    130,266.71/179,771.25 = 72,905.58/x
  3. Step 3: Cross multiply
    130,266.71x = 179,771.25 × 72,905.58
  4. Step 4: Simplify right side
    130,266.71x = 13,106,327,248.58
  5. Step 5: Solve for x
    x = 13,106,327,248.58/130,266.71
  6. Step 6: Final answer
    x = 100,611.49

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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.