Home / 118,515.24-163,660.77-76,148.19

Finding the Fourth Proportional to 118,515.24, 163,660.77 and 76,148.19

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Solution

The fourth proportional to 118,515.24, 163,660.77 and 76,148.19 is: 105,155.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,515.24 : 163,660.77 = 76,148.19 : x
  2. Step 2: Convert to fraction form
    118,515.24/163,660.77 = 76,148.19/x
  3. Step 3: Cross multiply
    118,515.24x = 163,660.77 × 76,148.19
  4. Step 4: Simplify right side
    118,515.24x = 12,462,471,409.51
  5. Step 5: Solve for x
    x = 12,462,471,409.51/118,515.24
  6. Step 6: Final answer
    x = 105,155.01

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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.