Home / 108,047.40-149,107.80-59,649.18

Finding the Fourth Proportional to 108,047.40, 149,107.80 and 59,649.18

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Solution

The fourth proportional to 108,047.40, 149,107.80 and 59,649.18 is: 82,317.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,047.40 : 149,107.80 = 59,649.18 : x
  2. Step 2: Convert to fraction form
    108,047.40/149,107.80 = 59,649.18/x
  3. Step 3: Cross multiply
    108,047.40x = 149,107.80 × 59,649.18
  4. Step 4: Simplify right side
    108,047.40x = 8,894,158,001.60
  5. Step 5: Solve for x
    x = 8,894,158,001.60/108,047.40
  6. Step 6: Final answer
    x = 82,317.19

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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.