Home / 108,197.16-149,309.10-59,136.78

Finding the Fourth Proportional to 108,197.16, 149,309.10 and 59,136.78

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Solution

The fourth proportional to 108,197.16, 149,309.10 and 59,136.78 is: 81,607.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,197.16 : 149,309.10 = 59,136.78 : x
  2. Step 2: Convert to fraction form
    108,197.16/149,309.10 = 59,136.78/x
  3. Step 3: Cross multiply
    108,197.16x = 149,309.10 × 59,136.78
  4. Step 4: Simplify right side
    108,197.16x = 8,829,659,398.70
  5. Step 5: Solve for x
    x = 8,829,659,398.70/108,197.16
  6. Step 6: Final answer
    x = 81,607.13

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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.