Home / 210,962.53-291,128.64-115,475.28

Finding the Fourth Proportional to 210,962.53, 291,128.64 and 115,475.28

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Solution

The fourth proportional to 210,962.53, 291,128.64 and 115,475.28 is: 159,356.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,962.53 : 291,128.64 = 115,475.28 : x
  2. Step 2: Convert to fraction form
    210,962.53/291,128.64 = 115,475.28/x
  3. Step 3: Cross multiply
    210,962.53x = 291,128.64 × 115,475.28
  4. Step 4: Simplify right side
    210,962.53x = 33,618,161,220.02
  5. Step 5: Solve for x
    x = 33,618,161,220.02/210,962.53
  6. Step 6: Final answer
    x = 159,356.08

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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.