Home / 125,303,213.45-172,915,828.72-69,545,362.78

Finding the Fourth Proportional to 125,303,213.45, 172,915,828.72 and 69,545,362.78

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Solution

The fourth proportional to 125,303,213.45, 172,915,828.72 and 69,545,362.78 is: 95,971,154.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,303,213.45 : 172,915,828.72 = 69,545,362.78 : x
  2. Step 2: Convert to fraction form
    125,303,213.45/172,915,828.72 = 69,545,362.78/x
  3. Step 3: Cross multiply
    125,303,213.45x = 172,915,828.72 × 69,545,362.78
  4. Step 4: Simplify right side
    125,303,213.45x = 12,025,494,037,806,374
  5. Step 5: Solve for x
    x = 12,025,494,037,806,374/125,303,213.45
  6. Step 6: Final answer
    x = 95,971,154.34

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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.