Home / 105,543.90-145,650.27-57,800.22

Finding the Fourth Proportional to 105,543.90, 145,650.27 and 57,800.22

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Solution

The fourth proportional to 105,543.90, 145,650.27 and 57,800.22 is: 79,764.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,543.90 : 145,650.27 = 57,800.22 : x
  2. Step 2: Convert to fraction form
    105,543.90/145,650.27 = 57,800.22/x
  3. Step 3: Cross multiply
    105,543.90x = 145,650.27 × 57,800.22
  4. Step 4: Simplify right side
    105,543.90x = 8,418,617,649.06
  5. Step 5: Solve for x
    x = 8,418,617,649.06/105,543.90
  6. Step 6: Final answer
    x = 79,764.13

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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.