Home / 118,883.20-164,038.40-71,134.40

Finding the Fourth Proportional to 118,883.20, 164,038.40 and 71,134.40

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Solution

The fourth proportional to 118,883.20, 164,038.40 and 71,134.40 is: 98,153.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,883.20 : 164,038.40 = 71,134.40 : x
  2. Step 2: Convert to fraction form
    118,883.20/164,038.40 = 71,134.40/x
  3. Step 3: Cross multiply
    118,883.20x = 164,038.40 × 71,134.40
  4. Step 4: Simplify right side
    118,883.20x = 11,668,773,160.96
  5. Step 5: Solve for x
    x = 11,668,773,160.96/118,883.20
  6. Step 6: Final answer
    x = 98,153.26

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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.