Home / 141,962.60-212,943.90-42,138.20

Finding the Fourth Proportional to 141,962.60, 212,943.90 and 42,138.20

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Solution

The fourth proportional to 141,962.60, 212,943.90 and 42,138.20 is: 63,207.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,962.60 : 212,943.90 = 42,138.20 : x
  2. Step 2: Convert to fraction form
    141,962.60/212,943.90 = 42,138.20/x
  3. Step 3: Cross multiply
    141,962.60x = 212,943.90 × 42,138.20
  4. Step 4: Simplify right side
    141,962.60x = 8,973,072,646.98
  5. Step 5: Solve for x
    x = 8,973,072,646.98/141,962.60
  6. Step 6: Final answer
    x = 63,207.30

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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.