Home / 105,419.22-145,567.17-75,296.94

Finding the Fourth Proportional to 105,419.22, 145,567.17 and 75,296.94

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Solution

The fourth proportional to 105,419.22, 145,567.17 and 75,296.94 is: 103,973.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,419.22 : 145,567.17 = 75,296.94 : x
  2. Step 2: Convert to fraction form
    105,419.22/145,567.17 = 75,296.94/x
  3. Step 3: Cross multiply
    105,419.22x = 145,567.17 × 75,296.94
  4. Step 4: Simplify right side
    105,419.22x = 10,960,762,465.46
  5. Step 5: Solve for x
    x = 10,960,762,465.46/105,419.22
  6. Step 6: Final answer
    x = 103,973.09

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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.