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Finding the Fourth Proportional to 155,476.52, 233,214.79 and 85,798.70

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Solution

The fourth proportional to 155,476.52, 233,214.79 and 85,798.70 is: 128,698.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,476.52 : 233,214.79 = 85,798.70 : x
  2. Step 2: Convert to fraction form
    155,476.52/233,214.79 = 85,798.70/x
  3. Step 3: Cross multiply
    155,476.52x = 233,214.79 × 85,798.70
  4. Step 4: Simplify right side
    155,476.52x = 20,009,526,171.31
  5. Step 5: Solve for x
    x = 20,009,526,171.31/155,476.52
  6. Step 6: Final answer
    x = 128,698.06

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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.