Home / 115,916.80-173,875.20-56,790.40

Finding the Fourth Proportional to 115,916.80, 173,875.20 and 56,790.40

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Solution

The fourth proportional to 115,916.80, 173,875.20 and 56,790.40 is: 85,185.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,916.80 : 173,875.20 = 56,790.40 : x
  2. Step 2: Convert to fraction form
    115,916.80/173,875.20 = 56,790.40/x
  3. Step 3: Cross multiply
    115,916.80x = 173,875.20 × 56,790.40
  4. Step 4: Simplify right side
    115,916.80x = 9,874,442,158.08
  5. Step 5: Solve for x
    x = 9,874,442,158.08/115,916.80
  6. Step 6: Final answer
    x = 85,185.60

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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.