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Finding the Fourth Proportional to 162,069.61, 223,678.63 and 90,454.24

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Solution

The fourth proportional to 162,069.61, 223,678.63 and 90,454.24 is: 124,839.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,069.61 : 223,678.63 = 90,454.24 : x
  2. Step 2: Convert to fraction form
    162,069.61/223,678.63 = 90,454.24/x
  3. Step 3: Cross multiply
    162,069.61x = 223,678.63 × 90,454.24
  4. Step 4: Simplify right side
    162,069.61x = 20,232,680,480.89
  5. Step 5: Solve for x
    x = 20,232,680,480.89/162,069.61
  6. Step 6: Final answer
    x = 124,839.45

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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.