Home / 105,453.51-145,525.85-57,706.87

Finding the Fourth Proportional to 105,453.51, 145,525.85 and 57,706.87

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Solution

The fourth proportional to 105,453.51, 145,525.85 and 57,706.87 is: 79,635.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,453.51 : 145,525.85 = 57,706.87 : x
  2. Step 2: Convert to fraction form
    105,453.51/145,525.85 = 57,706.87/x
  3. Step 3: Cross multiply
    105,453.51x = 145,525.85 × 57,706.87
  4. Step 4: Simplify right side
    105,453.51x = 8,397,841,307.59
  5. Step 5: Solve for x
    x = 8,397,841,307.59/105,453.51
  6. Step 6: Final answer
    x = 79,635.48

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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.