Home / 142,987.14-214,482.23-43,148.21

Finding the Fourth Proportional to 142,987.14, 214,482.23 and 43,148.21

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Solution

The fourth proportional to 142,987.14, 214,482.23 and 43,148.21 is: 64,722.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,987.14 : 214,482.23 = 43,148.21 : x
  2. Step 2: Convert to fraction form
    142,987.14/214,482.23 = 43,148.21/x
  3. Step 3: Cross multiply
    142,987.14x = 214,482.23 × 43,148.21
  4. Step 4: Simplify right side
    142,987.14x = 9,254,523,013.16
  5. Step 5: Solve for x
    x = 9,254,523,013.16/142,987.14
  6. Step 6: Final answer
    x = 64,722.76

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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.