Home / 142,070.22-212,935.64-66,066.03

Finding the Fourth Proportional to 142,070.22, 212,935.64 and 66,066.03

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Solution

The fourth proportional to 142,070.22, 212,935.64 and 66,066.03 is: 99,020.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,070.22 : 212,935.64 = 66,066.03 : x
  2. Step 2: Convert to fraction form
    142,070.22/212,935.64 = 66,066.03/x
  3. Step 3: Cross multiply
    142,070.22x = 212,935.64 × 66,066.03
  4. Step 4: Simplify right side
    142,070.22x = 14,067,812,049.98
  5. Step 5: Solve for x
    x = 14,067,812,049.98/142,070.22
  6. Step 6: Final answer
    x = 99,020.13

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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.