Home / 156,984.24-216,637.68-85,364.40

Finding the Fourth Proportional to 156,984.24, 216,637.68 and 85,364.40

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Solution

The fourth proportional to 156,984.24, 216,637.68 and 85,364.40 is: 117,802.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,984.24 : 216,637.68 = 85,364.40 : x
  2. Step 2: Convert to fraction form
    156,984.24/216,637.68 = 85,364.40/x
  3. Step 3: Cross multiply
    156,984.24x = 216,637.68 × 85,364.40
  4. Step 4: Simplify right side
    156,984.24x = 18,493,145,570.59
  5. Step 5: Solve for x
    x = 18,493,145,570.59/156,984.24
  6. Step 6: Final answer
    x = 117,802.56

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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.