Home / 130,955.10-195,938.01-80,173.50

Finding the Fourth Proportional to 130,955.10, 195,938.01 and 80,173.50

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Solution

The fourth proportional to 130,955.10, 195,938.01 and 80,173.50 is: 119,957.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,955.10 : 195,938.01 = 80,173.50 : x
  2. Step 2: Convert to fraction form
    130,955.10/195,938.01 = 80,173.50/x
  3. Step 3: Cross multiply
    130,955.10x = 195,938.01 × 80,173.50
  4. Step 4: Simplify right side
    130,955.10x = 15,709,036,044.74
  5. Step 5: Solve for x
    x = 15,709,036,044.74/130,955.10
  6. Step 6: Final answer
    x = 119,957.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.