Home / 130,412.40-195,618.60-60,428.40

Finding the Fourth Proportional to 130,412.40, 195,618.60 and 60,428.40

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Solution

The fourth proportional to 130,412.40, 195,618.60 and 60,428.40 is: 90,642.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,412.40 : 195,618.60 = 60,428.40 : x
  2. Step 2: Convert to fraction form
    130,412.40/195,618.60 = 60,428.40/x
  3. Step 3: Cross multiply
    130,412.40x = 195,618.60 × 60,428.40
  4. Step 4: Simplify right side
    130,412.40x = 11,820,919,008.24
  5. Step 5: Solve for x
    x = 11,820,919,008.24/130,412.40
  6. Step 6: Final answer
    x = 90,642.60

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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.