Home / 147,066.65-220,043.29-87,127.31

Finding the Fourth Proportional to 147,066.65, 220,043.29 and 87,127.31

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Solution

The fourth proportional to 147,066.65, 220,043.29 and 87,127.31 is: 130,361.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,066.65 : 220,043.29 = 87,127.31 : x
  2. Step 2: Convert to fraction form
    147,066.65/220,043.29 = 87,127.31/x
  3. Step 3: Cross multiply
    147,066.65x = 220,043.29 × 87,127.31
  4. Step 4: Simplify right side
    147,066.65x = 19,171,778,841.03
  5. Step 5: Solve for x
    x = 19,171,778,841.03/147,066.65
  6. Step 6: Final answer
    x = 130,361.16

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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.