Home / 141,461.15-212,285.20-66,602.70

Finding the Fourth Proportional to 141,461.15, 212,285.20 and 66,602.70

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Solution

The fourth proportional to 141,461.15, 212,285.20 and 66,602.70 is: 99,948.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,461.15 : 212,285.20 = 66,602.70 : x
  2. Step 2: Convert to fraction form
    141,461.15/212,285.20 = 66,602.70/x
  3. Step 3: Cross multiply
    141,461.15x = 212,285.20 × 66,602.70
  4. Step 4: Simplify right side
    141,461.15x = 14,138,767,157.03
  5. Step 5: Solve for x
    x = 14,138,767,157.03/141,461.15
  6. Step 6: Final answer
    x = 99,948.06

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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.