Home / 210,114.40-290,022.56-129,567.20

Finding the Fourth Proportional to 210,114.40, 290,022.56 and 129,567.20

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Solution

The fourth proportional to 210,114.40, 290,022.56 and 129,567.20 is: 178,842.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,114.40 : 290,022.56 = 129,567.20 : x
  2. Step 2: Convert to fraction form
    210,114.40/290,022.56 = 129,567.20/x
  3. Step 3: Cross multiply
    210,114.40x = 290,022.56 × 129,567.20
  4. Step 4: Simplify right side
    210,114.40x = 37,577,411,036.03
  5. Step 5: Solve for x
    x = 37,577,411,036.03/210,114.40
  6. Step 6: Final answer
    x = 178,842.63

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1.5x scale

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.