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Finding the Fourth Proportional to 162,290.48, 223,934.76 and 90,666.80

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Solution

The fourth proportional to 162,290.48, 223,934.76 and 90,666.80 is: 125,105.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,290.48 : 223,934.76 = 90,666.80 : x
  2. Step 2: Convert to fraction form
    162,290.48/223,934.76 = 90,666.80/x
  3. Step 3: Cross multiply
    162,290.48x = 223,934.76 × 90,666.80
  4. Step 4: Simplify right side
    162,290.48x = 20,303,448,097.97
  5. Step 5: Solve for x
    x = 20,303,448,097.97/162,290.48
  6. Step 6: Final answer
    x = 125,105.60

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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.