Home / 143,320.25-214,985.23-38,139.32

Finding the Fourth Proportional to 143,320.25, 214,985.23 and 38,139.32

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Solution

The fourth proportional to 143,320.25, 214,985.23 and 38,139.32 is: 57,210.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,320.25 : 214,985.23 = 38,139.32 : x
  2. Step 2: Convert to fraction form
    143,320.25/214,985.23 = 38,139.32/x
  3. Step 3: Cross multiply
    143,320.25x = 214,985.23 × 38,139.32
  4. Step 4: Simplify right side
    143,320.25x = 8,199,390,118.16
  5. Step 5: Solve for x
    x = 8,199,390,118.16/143,320.25
  6. Step 6: Final answer
    x = 57,210.27

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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.