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Finding the Fourth Proportional to 162,041.30, 243,029.55 and 77,801.30

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Solution

The fourth proportional to 162,041.30, 243,029.55 and 77,801.30 is: 116,686.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,041.30 : 243,029.55 = 77,801.30 : x
  2. Step 2: Convert to fraction form
    162,041.30/243,029.55 = 77,801.30/x
  3. Step 3: Cross multiply
    162,041.30x = 243,029.55 × 77,801.30
  4. Step 4: Simplify right side
    162,041.30x = 18,908,014,928.42
  5. Step 5: Solve for x
    x = 18,908,014,928.42/162,041.30
  6. Step 6: Final answer
    x = 116,686.39

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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.