Home / 105,347.42-145,378.43-57,600.26

Finding the Fourth Proportional to 105,347.42, 145,378.43 and 57,600.26

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Solution

The fourth proportional to 105,347.42, 145,378.43 and 57,600.26 is: 79,487.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,347.42 : 145,378.43 = 57,600.26 : x
  2. Step 2: Convert to fraction form
    105,347.42/145,378.43 = 57,600.26/x
  3. Step 3: Cross multiply
    105,347.42x = 145,378.43 × 57,600.26
  4. Step 4: Simplify right side
    105,347.42x = 8,373,834,351.50
  5. Step 5: Solve for x
    x = 8,373,834,351.50/105,347.42
  6. Step 6: Final answer
    x = 79,487.80

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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.