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Finding the Fourth Proportional to 155,854.80, 233,816.88 and 72,703.44

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Solution

The fourth proportional to 155,854.80, 233,816.88 and 72,703.44 is: 109,071.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,854.80 : 233,816.88 = 72,703.44 : x
  2. Step 2: Convert to fraction form
    155,854.80/233,816.88 = 72,703.44/x
  3. Step 3: Cross multiply
    155,854.80x = 233,816.88 × 72,703.44
  4. Step 4: Simplify right side
    155,854.80x = 16,999,291,506.07
  5. Step 5: Solve for x
    x = 16,999,291,506.07/155,854.80
  6. Step 6: Final answer
    x = 109,071.34

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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.