Home / 102,955.15-142,078.16-57,633.22

Finding the Fourth Proportional to 102,955.15, 142,078.16 and 57,633.22

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Solution

The fourth proportional to 102,955.15, 142,078.16 and 57,633.22 is: 79,533.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,955.15 : 142,078.16 = 57,633.22 : x
  2. Step 2: Convert to fraction form
    102,955.15/142,078.16 = 57,633.22/x
  3. Step 3: Cross multiply
    102,955.15x = 142,078.16 × 57,633.22
  4. Step 4: Simplify right side
    102,955.15x = 8,188,421,852.48
  5. Step 5: Solve for x
    x = 8,188,421,852.48/102,955.15
  6. Step 6: Final answer
    x = 79,533.87

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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.