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Finding the Fourth Proportional to 162,016.80, 242,830.80 and 83,090.40

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Solution

The fourth proportional to 162,016.80, 242,830.80 and 83,090.40 is: 124,535.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,016.80 : 242,830.80 = 83,090.40 : x
  2. Step 2: Convert to fraction form
    162,016.80/242,830.80 = 83,090.40/x
  3. Step 3: Cross multiply
    162,016.80x = 242,830.80 × 83,090.40
  4. Step 4: Simplify right side
    162,016.80x = 20,176,908,304.32
  5. Step 5: Solve for x
    x = 20,176,908,304.32/162,016.80
  6. Step 6: Final answer
    x = 124,535.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.