Home / 216,749.25-325,125.63-66,989.16

Finding the Fourth Proportional to 216,749.25, 325,125.63 and 66,989.16

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Solution

The fourth proportional to 216,749.25, 325,125.63 and 66,989.16 is: 100,484.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,749.25 : 325,125.63 = 66,989.16 : x
  2. Step 2: Convert to fraction form
    216,749.25/325,125.63 = 66,989.16/x
  3. Step 3: Cross multiply
    216,749.25x = 325,125.63 × 66,989.16
  4. Step 4: Simplify right side
    216,749.25x = 21,779,892,848.17
  5. Step 5: Solve for x
    x = 21,779,892,848.17/216,749.25
  6. Step 6: Final answer
    x = 100,484.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.