Home / 130,432.28-194,480.06-128,070.32

Finding the Fourth Proportional to 130,432.28, 194,480.06 and 128,070.32

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Solution

The fourth proportional to 130,432.28, 194,480.06 and 128,070.32 is: 190,958.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,432.28 : 194,480.06 = 128,070.32 : x
  2. Step 2: Convert to fraction form
    130,432.28/194,480.06 = 128,070.32/x
  3. Step 3: Cross multiply
    130,432.28x = 194,480.06 × 128,070.32
  4. Step 4: Simplify right side
    130,432.28x = 24,907,121,905.07
  5. Step 5: Solve for x
    x = 24,907,121,905.07/130,432.28
  6. Step 6: Final answer
    x = 190,958.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.