Home / 142,787.60-214,181.40-42,963.20

Finding the Fourth Proportional to 142,787.60, 214,181.40 and 42,963.20

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Solution

The fourth proportional to 142,787.60, 214,181.40 and 42,963.20 is: 64,444.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,787.60 : 214,181.40 = 42,963.20 : x
  2. Step 2: Convert to fraction form
    142,787.60/214,181.40 = 42,963.20/x
  3. Step 3: Cross multiply
    142,787.60x = 214,181.40 × 42,963.20
  4. Step 4: Simplify right side
    142,787.60x = 9,201,918,324.48
  5. Step 5: Solve for x
    x = 9,201,918,324.48/142,787.60
  6. Step 6: Final answer
    x = 64,444.80

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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.