Home / 109,916.70-164,875.05-56,772.60

Finding the Fourth Proportional to 109,916.70, 164,875.05 and 56,772.60

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Solution

The fourth proportional to 109,916.70, 164,875.05 and 56,772.60 is: 85,158.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,916.70 : 164,875.05 = 56,772.60 : x
  2. Step 2: Convert to fraction form
    109,916.70/164,875.05 = 56,772.60/x
  3. Step 3: Cross multiply
    109,916.70x = 164,875.05 × 56,772.60
  4. Step 4: Simplify right side
    109,916.70x = 9,360,385,263.63
  5. Step 5: Solve for x
    x = 9,360,385,263.63/109,916.70
  6. Step 6: Final answer
    x = 85,158.90

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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.