Home / 145,287.48-200,498.63-87,926.12

Finding the Fourth Proportional to 145,287.48, 200,498.63 and 87,926.12

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Solution

The fourth proportional to 145,287.48, 200,498.63 and 87,926.12 is: 121,339.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,287.48 : 200,498.63 = 87,926.12 : x
  2. Step 2: Convert to fraction form
    145,287.48/200,498.63 = 87,926.12/x
  3. Step 3: Cross multiply
    145,287.48x = 200,498.63 × 87,926.12
  4. Step 4: Simplify right side
    145,287.48x = 17,629,066,601.22
  5. Step 5: Solve for x
    x = 17,629,066,601.22/145,287.48
  6. Step 6: Final answer
    x = 121,339.20

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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.