Home / 142,970.82-214,386.75-43,112.40

Finding the Fourth Proportional to 142,970.82, 214,386.75 and 43,112.40

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Solution

The fourth proportional to 142,970.82, 214,386.75 and 43,112.40 is: 64,647.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,970.82 : 214,386.75 = 43,112.40 : x
  2. Step 2: Convert to fraction form
    142,970.82/214,386.75 = 43,112.40/x
  3. Step 3: Cross multiply
    142,970.82x = 214,386.75 × 43,112.40
  4. Step 4: Simplify right side
    142,970.82x = 9,242,727,320.70
  5. Step 5: Solve for x
    x = 9,242,727,320.70/142,970.82
  6. Step 6: Final answer
    x = 64,647.65

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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.