Home / 136,024,141.50-187,710,525.63-74,143,938.78

Finding the Fourth Proportional to 136,024,141.50, 187,710,525.63 and 74,143,938.78

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Solution

The fourth proportional to 136,024,141.50, 187,710,525.63 and 74,143,938.78 is: 102,317,114.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,024,141.50 : 187,710,525.63 = 74,143,938.78 : x
  2. Step 2: Convert to fraction form
    136,024,141.50/187,710,525.63 = 74,143,938.78/x
  3. Step 3: Cross multiply
    136,024,141.50x = 187,710,525.63 × 74,143,938.78
  4. Step 4: Simplify right side
    136,024,141.50x = 13,917,597,720,672,340
  5. Step 5: Solve for x
    x = 13,917,597,720,672,340/136,024,141.50
  6. Step 6: Final answer
    x = 102,317,114.94

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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.