Home / 108,941.28-163,421.33-30,055.51

Finding the Fourth Proportional to 108,941.28, 163,421.33 and 30,055.51

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Solution

The fourth proportional to 108,941.28, 163,421.33 and 30,055.51 is: 45,085.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,941.28 : 163,421.33 = 30,055.51 : x
  2. Step 2: Convert to fraction form
    108,941.28/163,421.33 = 30,055.51/x
  3. Step 3: Cross multiply
    108,941.28x = 163,421.33 × 30,055.51
  4. Step 4: Simplify right side
    108,941.28x = 4,911,710,600.92
  5. Step 5: Solve for x
    x = 4,911,710,600.92/108,941.28
  6. Step 6: Final answer
    x = 45,085.86

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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.