Home / 162,291.04-223,960.12-90,683.40

Finding the Fourth Proportional to 162,291.04, 223,960.12 and 90,683.40

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Solution

The fourth proportional to 162,291.04, 223,960.12 and 90,683.40 is: 125,142.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,291.04 : 223,960.12 = 90,683.40 : x
  2. Step 2: Convert to fraction form
    162,291.04/223,960.12 = 90,683.40/x
  3. Step 3: Cross multiply
    162,291.04x = 223,960.12 × 90,683.40
  4. Step 4: Simplify right side
    162,291.04x = 20,309,465,146.01
  5. Step 5: Solve for x
    x = 20,309,465,146.01/162,291.04
  6. Step 6: Final answer
    x = 125,142.25

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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.