Home / 130,014.10-195,021.15-79,931.80

Finding the Fourth Proportional to 130,014.10, 195,021.15 and 79,931.80

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Solution

The fourth proportional to 130,014.10, 195,021.15 and 79,931.80 is: 119,897.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,014.10 : 195,021.15 = 79,931.80 : x
  2. Step 2: Convert to fraction form
    130,014.10/195,021.15 = 79,931.80/x
  3. Step 3: Cross multiply
    130,014.10x = 195,021.15 × 79,931.80
  4. Step 4: Simplify right side
    130,014.10x = 15,588,391,557.57
  5. Step 5: Solve for x
    x = 15,588,391,557.57/130,014.10
  6. Step 6: Final answer
    x = 119,897.70

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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.