Home / 118,819.28-163,965.60-71,044.40

Finding the Fourth Proportional to 118,819.28, 163,965.60 and 71,044.40

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Solution

The fourth proportional to 118,819.28, 163,965.60 and 71,044.40 is: 98,038.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,819.28 : 163,965.60 = 71,044.40 : x
  2. Step 2: Convert to fraction form
    118,819.28/163,965.60 = 71,044.40/x
  3. Step 3: Cross multiply
    118,819.28x = 163,965.60 × 71,044.40
  4. Step 4: Simplify right side
    118,819.28x = 11,648,837,672.64
  5. Step 5: Solve for x
    x = 11,648,837,672.64/118,819.28
  6. Step 6: Final answer
    x = 98,038.28

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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.