Home / 141,979.60-212,969.40-42,155.20

Finding the Fourth Proportional to 141,979.60, 212,969.40 and 42,155.20

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Solution

The fourth proportional to 141,979.60, 212,969.40 and 42,155.20 is: 63,232.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,979.60 : 212,969.40 = 42,155.20 : x
  2. Step 2: Convert to fraction form
    141,979.60/212,969.40 = 42,155.20/x
  3. Step 3: Cross multiply
    141,979.60x = 212,969.40 × 42,155.20
  4. Step 4: Simplify right side
    141,979.60x = 8,977,767,650.88
  5. Step 5: Solve for x
    x = 8,977,767,650.88/141,979.60
  6. Step 6: Final answer
    x = 63,232.80

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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.