Home / 123,773,574.60-170,812,142.64-74,222,015.76

Finding the Fourth Proportional to 123,773,574.60, 170,812,142.64 and 74,222,015.76

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Solution

The fourth proportional to 123,773,574.60, 170,812,142.64 and 74,222,015.76 is: 102,429,145.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,773,574.60 : 170,812,142.64 = 74,222,015.76 : x
  2. Step 2: Convert to fraction form
    123,773,574.60/170,812,142.64 = 74,222,015.76/x
  3. Step 3: Cross multiply
    123,773,574.60x = 170,812,142.64 × 74,222,015.76
  4. Step 4: Simplify right side
    123,773,574.60x = 12,678,021,543,025,448
  5. Step 5: Solve for x
    x = 12,678,021,543,025,448/123,773,574.60
  6. Step 6: Final answer
    x = 102,429,145.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.