Home / 142,056.44-195,860.59-90,985.20

Finding the Fourth Proportional to 142,056.44, 195,860.59 and 90,985.20

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Solution

The fourth proportional to 142,056.44, 195,860.59 and 90,985.20 is: 125,446.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,056.44 : 195,860.59 = 90,985.20 : x
  2. Step 2: Convert to fraction form
    142,056.44/195,860.59 = 90,985.20/x
  3. Step 3: Cross multiply
    142,056.44x = 195,860.59 × 90,985.20
  4. Step 4: Simplify right side
    142,056.44x = 17,820,414,953.27
  5. Step 5: Solve for x
    x = 17,820,414,953.27/142,056.44
  6. Step 6: Final answer
    x = 125,446.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.