Home / 101,587.09-140,188.15-56,265.44

Finding the Fourth Proportional to 101,587.09, 140,188.15 and 56,265.44

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Solution

The fourth proportional to 101,587.09, 140,188.15 and 56,265.44 is: 77,645.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,587.09 : 140,188.15 = 56,265.44 : x
  2. Step 2: Convert to fraction form
    101,587.09/140,188.15 = 56,265.44/x
  3. Step 3: Cross multiply
    101,587.09x = 140,188.15 × 56,265.44
  4. Step 4: Simplify right side
    101,587.09x = 7,887,748,701.96
  5. Step 5: Solve for x
    x = 7,887,748,701.96/101,587.09
  6. Step 6: Final answer
    x = 77,645.19

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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.