Home / 118,031.04-162,698.40-80,239.68

Finding the Fourth Proportional to 118,031.04, 162,698.40 and 80,239.68

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Solution

The fourth proportional to 118,031.04, 162,698.40 and 80,239.68 is: 110,605.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,031.04 : 162,698.40 = 80,239.68 : x
  2. Step 2: Convert to fraction form
    118,031.04/162,698.40 = 80,239.68/x
  3. Step 3: Cross multiply
    118,031.04x = 162,698.40 × 80,239.68
  4. Step 4: Simplify right side
    118,031.04x = 13,054,867,552.51
  5. Step 5: Solve for x
    x = 13,054,867,552.51/118,031.04
  6. Step 6: Final answer
    x = 110,605.38

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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.