Home / 105,232.51-145,224.06-57,488.94

Finding the Fourth Proportional to 105,232.51, 145,224.06 and 57,488.94

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Solution

The fourth proportional to 105,232.51, 145,224.06 and 57,488.94 is: 79,336.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,232.51 : 145,224.06 = 57,488.94 : x
  2. Step 2: Convert to fraction form
    105,232.51/145,224.06 = 57,488.94/x
  3. Step 3: Cross multiply
    105,232.51x = 145,224.06 × 57,488.94
  4. Step 4: Simplify right side
    105,232.51x = 8,348,777,271.90
  5. Step 5: Solve for x
    x = 8,348,777,271.90/105,232.51
  6. Step 6: Final answer
    x = 79,336.48

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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.