Home / 130,111.30-195,166.95-100,586.80

Finding the Fourth Proportional to 130,111.30, 195,166.95 and 100,586.80

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Solution

The fourth proportional to 130,111.30, 195,166.95 and 100,586.80 is: 150,880.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,111.30 : 195,166.95 = 100,586.80 : x
  2. Step 2: Convert to fraction form
    130,111.30/195,166.95 = 100,586.80/x
  3. Step 3: Cross multiply
    130,111.30x = 195,166.95 × 100,586.80
  4. Step 4: Simplify right side
    130,111.30x = 19,631,218,966.26
  5. Step 5: Solve for x
    x = 19,631,218,966.26/130,111.30
  6. Step 6: Final answer
    x = 150,880.20

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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.