Home / 109,683.63-151,355.12-61,930.35

Finding the Fourth Proportional to 109,683.63, 151,355.12 and 61,930.35

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Solution

The fourth proportional to 109,683.63, 151,355.12 and 61,930.35 is: 85,459.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,683.63 : 151,355.12 = 61,930.35 : x
  2. Step 2: Convert to fraction form
    109,683.63/151,355.12 = 61,930.35/x
  3. Step 3: Cross multiply
    109,683.63x = 151,355.12 × 61,930.35
  4. Step 4: Simplify right side
    109,683.63x = 9,373,475,246.24
  5. Step 5: Solve for x
    x = 9,373,475,246.24/109,683.63
  6. Step 6: Final answer
    x = 85,459.20

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1.5x scale

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.