Home / 162,078.81-223,681.41-90,469.58

Finding the Fourth Proportional to 162,078.81, 223,681.41 and 90,469.58

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Solution

The fourth proportional to 162,078.81, 223,681.41 and 90,469.58 is: 124,855.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,078.81 : 223,681.41 = 90,469.58 : x
  2. Step 2: Convert to fraction form
    162,078.81/223,681.41 = 90,469.58/x
  3. Step 3: Cross multiply
    162,078.81x = 223,681.41 × 90,469.58
  4. Step 4: Simplify right side
    162,078.81x = 20,236,362,098.10
  5. Step 5: Solve for x
    x = 20,236,362,098.10/162,078.81
  6. Step 6: Final answer
    x = 124,855.08

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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.