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Finding the Fourth Proportional to 95,421.80, 143,132.70 and 84,924.20

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Solution

The fourth proportional to 95,421.80, 143,132.70 and 84,924.20 is: 127,386.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,421.80 : 143,132.70 = 84,924.20 : x
  2. Step 2: Convert to fraction form
    95,421.80/143,132.70 = 84,924.20/x
  3. Step 3: Cross multiply
    95,421.80x = 143,132.70 × 84,924.20
  4. Step 4: Simplify right side
    95,421.80x = 12,155,430,041.34
  5. Step 5: Solve for x
    x = 12,155,430,041.34/95,421.80
  6. Step 6: Final answer
    x = 127,386.30

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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.