Home / 145,720.72-201,187.60-118,927.24

Finding the Fourth Proportional to 145,720.72, 201,187.60 and 118,927.24

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Solution

The fourth proportional to 145,720.72, 201,187.60 and 118,927.24 is: 164,195.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,720.72 : 201,187.60 = 118,927.24 : x
  2. Step 2: Convert to fraction form
    145,720.72/201,187.60 = 118,927.24/x
  3. Step 3: Cross multiply
    145,720.72x = 201,187.60 × 118,927.24
  4. Step 4: Simplify right side
    145,720.72x = 23,926,685,189.94
  5. Step 5: Solve for x
    x = 23,926,685,189.94/145,720.72
  6. Step 6: Final answer
    x = 164,195.49

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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.