Home / 105,263.90-145,262.45-57,516.22

Finding the Fourth Proportional to 105,263.90, 145,262.45 and 57,516.22

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Solution

The fourth proportional to 105,263.90, 145,262.45 and 57,516.22 is: 79,371.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,263.90 : 145,262.45 = 57,516.22 : x
  2. Step 2: Convert to fraction form
    105,263.90/145,262.45 = 57,516.22/x
  3. Step 3: Cross multiply
    105,263.90x = 145,262.45 × 57,516.22
  4. Step 4: Simplify right side
    105,263.90x = 8,354,946,018.05
  5. Step 5: Solve for x
    x = 8,354,946,018.05/105,263.90
  6. Step 6: Final answer
    x = 79,371.43

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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.