Home / 155,709.39-214,878.96-84,089.42

Finding the Fourth Proportional to 155,709.39, 214,878.96 and 84,089.42

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Solution

The fourth proportional to 155,709.39, 214,878.96 and 84,089.42 is: 116,043.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,709.39 : 214,878.96 = 84,089.42 : x
  2. Step 2: Convert to fraction form
    155,709.39/214,878.96 = 84,089.42/x
  3. Step 3: Cross multiply
    155,709.39x = 214,878.96 × 84,089.42
  4. Step 4: Simplify right side
    155,709.39x = 18,069,046,598.41
  5. Step 5: Solve for x
    x = 18,069,046,598.41/155,709.39
  6. Step 6: Final answer
    x = 116,043.40

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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.