Home / 435,869.10-653,821.74-136,355.40

Finding the Fourth Proportional to 435,869.10, 653,821.74 and 136,355.40

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Solution

The fourth proportional to 435,869.10, 653,821.74 and 136,355.40 is: 204,538.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,869.10 : 653,821.74 = 136,355.40 : x
  2. Step 2: Convert to fraction form
    435,869.10/653,821.74 = 136,355.40/x
  3. Step 3: Cross multiply
    435,869.10x = 653,821.74 × 136,355.40
  4. Step 4: Simplify right side
    435,869.10x = 89,152,124,886.40
  5. Step 5: Solve for x
    x = 89,152,124,886.40/435,869.10
  6. Step 6: Final answer
    x = 204,538.76

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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.