Home / 210,525.81-290,522.19-115,030.45

Finding the Fourth Proportional to 210,525.81, 290,522.19 and 115,030.45

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Solution

The fourth proportional to 210,525.81, 290,522.19 and 115,030.45 is: 158,740.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,525.81 : 290,522.19 = 115,030.45 : x
  2. Step 2: Convert to fraction form
    210,525.81/290,522.19 = 115,030.45/x
  3. Step 3: Cross multiply
    210,525.81x = 290,522.19 × 115,030.45
  4. Step 4: Simplify right side
    210,525.81x = 33,418,898,250.69
  5. Step 5: Solve for x
    x = 33,418,898,250.69/210,525.81
  6. Step 6: Final answer
    x = 158,740.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.