Home / 109,210.90-163,749.45-42,573.18

Finding the Fourth Proportional to 109,210.90, 163,749.45 and 42,573.18

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Solution

The fourth proportional to 109,210.90, 163,749.45 and 42,573.18 is: 63,833.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,210.90 : 163,749.45 = 42,573.18 : x
  2. Step 2: Convert to fraction form
    109,210.90/163,749.45 = 42,573.18/x
  3. Step 3: Cross multiply
    109,210.90x = 163,749.45 × 42,573.18
  4. Step 4: Simplify right side
    109,210.90x = 6,971,334,036.04
  5. Step 5: Solve for x
    x = 6,971,334,036.04/109,210.90
  6. Step 6: Final answer
    x = 63,833.69

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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.