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Finding the Fourth Proportional to 143,320.10, 214,980.15 and 117,950.90

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Solution

The fourth proportional to 143,320.10, 214,980.15 and 117,950.90 is: 176,926.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,320.10 : 214,980.15 = 117,950.90 : x
  2. Step 2: Convert to fraction form
    143,320.10/214,980.15 = 117,950.90/x
  3. Step 3: Cross multiply
    143,320.10x = 214,980.15 × 117,950.90
  4. Step 4: Simplify right side
    143,320.10x = 25,357,102,174.64
  5. Step 5: Solve for x
    x = 25,357,102,174.64/143,320.10
  6. Step 6: Final answer
    x = 176,926.35

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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.