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Finding the Fourth Proportional to 155,989.80, 234,027.90 and 103,501.80

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Solution

The fourth proportional to 155,989.80, 234,027.90 and 103,501.80 is: 155,281.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,989.80 : 234,027.90 = 103,501.80 : x
  2. Step 2: Convert to fraction form
    155,989.80/234,027.90 = 103,501.80/x
  3. Step 3: Cross multiply
    155,989.80x = 234,027.90 × 103,501.80
  4. Step 4: Simplify right side
    155,989.80x = 24,222,308,900.22
  5. Step 5: Solve for x
    x = 24,222,308,900.22/155,989.80
  6. Step 6: Final answer
    x = 155,281.36

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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.