Home / 130,124.70-195,004.80-103,516.20

Finding the Fourth Proportional to 130,124.70, 195,004.80 and 103,516.20

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Solution

The fourth proportional to 130,124.70, 195,004.80 and 103,516.20 is: 155,129.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,124.70 : 195,004.80 = 103,516.20 : x
  2. Step 2: Convert to fraction form
    130,124.70/195,004.80 = 103,516.20/x
  3. Step 3: Cross multiply
    130,124.70x = 195,004.80 × 103,516.20
  4. Step 4: Simplify right side
    130,124.70x = 20,186,155,877.76
  5. Step 5: Solve for x
    x = 20,186,155,877.76/130,124.70
  6. Step 6: Final answer
    x = 155,129.32

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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.