Home / 424,869.92-637,085.32-125,312.36

Finding the Fourth Proportional to 424,869.92, 637,085.32 and 125,312.36

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Solution

The fourth proportional to 424,869.92, 637,085.32 and 125,312.36 is: 187,903.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,869.92 : 637,085.32 = 125,312.36 : x
  2. Step 2: Convert to fraction form
    424,869.92/637,085.32 = 125,312.36/x
  3. Step 3: Cross multiply
    424,869.92x = 637,085.32 × 125,312.36
  4. Step 4: Simplify right side
    424,869.92x = 79,834,664,970.56
  5. Step 5: Solve for x
    x = 79,834,664,970.56/424,869.92
  6. Step 6: Final answer
    x = 187,903.78

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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.