Home / 118,834.40-163,975.85-71,070.32

Finding the Fourth Proportional to 118,834.40, 163,975.85 and 71,070.32

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Solution

The fourth proportional to 118,834.40, 163,975.85 and 71,070.32 is: 98,067.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,834.40 : 163,975.85 = 71,070.32 : x
  2. Step 2: Convert to fraction form
    118,834.40/163,975.85 = 71,070.32/x
  3. Step 3: Cross multiply
    118,834.40x = 163,975.85 × 71,070.32
  4. Step 4: Simplify right side
    118,834.40x = 11,653,816,131.77
  5. Step 5: Solve for x
    x = 11,653,816,131.77/118,834.40
  6. Step 6: Final answer
    x = 98,067.70

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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.