Home / 155,087.67-214,005.87-87,089.18

Finding the Fourth Proportional to 155,087.67, 214,005.87 and 87,089.18

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Solution

The fourth proportional to 155,087.67, 214,005.87 and 87,089.18 is: 120,174.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,087.67 : 214,005.87 = 87,089.18 : x
  2. Step 2: Convert to fraction form
    155,087.67/214,005.87 = 87,089.18/x
  3. Step 3: Cross multiply
    155,087.67x = 214,005.87 × 87,089.18
  4. Step 4: Simplify right side
    155,087.67x = 18,637,596,268.50
  5. Step 5: Solve for x
    x = 18,637,596,268.50/155,087.67
  6. Step 6: Final answer
    x = 120,174.58

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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.