Home / 130,128.40-195,192.60-117,006.40

Finding the Fourth Proportional to 130,128.40, 195,192.60 and 117,006.40

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Solution

The fourth proportional to 130,128.40, 195,192.60 and 117,006.40 is: 175,509.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,128.40 : 195,192.60 = 117,006.40 : x
  2. Step 2: Convert to fraction form
    130,128.40/195,192.60 = 117,006.40/x
  3. Step 3: Cross multiply
    130,128.40x = 195,192.60 × 117,006.40
  4. Step 4: Simplify right side
    130,128.40x = 22,838,783,432.64
  5. Step 5: Solve for x
    x = 22,838,783,432.64/130,128.40
  6. Step 6: Final answer
    x = 175,509.60

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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.