Home / 105,320.22-145,341.92-57,573.76

Finding the Fourth Proportional to 105,320.22, 145,341.92 and 57,573.76

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Solution

The fourth proportional to 105,320.22, 145,341.92 and 57,573.76 is: 79,451.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,320.22 : 145,341.92 = 57,573.76 : x
  2. Step 2: Convert to fraction form
    105,320.22/145,341.92 = 57,573.76/x
  3. Step 3: Cross multiply
    105,320.22x = 145,341.92 × 57,573.76
  4. Step 4: Simplify right side
    105,320.22x = 8,367,880,820.02
  5. Step 5: Solve for x
    x = 8,367,880,820.02/105,320.22
  6. Step 6: Final answer
    x = 79,451.80

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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.